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(12) Patent Application: | (11) CA 2771113 |
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(54) English Title: | CO2 REFRIGERATION SYSTEM FOR ICE-PLAYING SURFACE |
(54) French Title: | SYSTEME DE REFRIGERATION AU CO2 POUR SURFACES DE SPORT SUR GLACE |
Status: | Deemed Abandoned and Beyond the Period of Reinstatement - Pending Response to Notice of Disregarded Communication |
(51) International Patent Classification (IPC): |
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(72) Inventors : |
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(73) Owners : |
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(71) Applicants : |
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(74) Agent: | NORTON ROSE FULBRIGHT CANADA LLP/S.E.N.C.R.L., S.R.L. |
(74) Associate agent: | |
(45) Issued: | |
(22) Filed Date: | 2012-03-08 |
(41) Open to Public Inspection: | 2012-05-22 |
Examination requested: | 2012-03-08 | Green Technology Granted: | 2012-05-22 |
Availability of licence: | N/A |
Dedicated to the Public: | N/A |
(25) Language of filing: | English |
Patent Cooperation Treaty (PCT): | No |
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(30) Application Priority Data: | None |
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A CO2 refrigeration system comprises a CO2 circuit. In a compression stage of
the circuit, CO2 refrigerant is compressed to a supracompression state. In a
cooling stage, the
CO2 refrigerant from the compression stage releases heat. A pressure-
regulating unit in a line
extending from the cooling stage to one side of a heat exchanger maintains a
pressure differential.
A second refrigerant cycles in a cooling circuit between a second side of the
heat exchanger and
an ice-playing surface. The second refrigerant absorbs heat from the ice-
playing surface and
releases heat to the CO2 refrigerant in the heat exchanger.
Note: Claims are shown in the official language in which they were submitted.
Note: Descriptions are shown in the official language in which they were submitted.
2024-08-01:As part of the Next Generation Patents (NGP) transition, the Canadian Patents Database (CPD) now contains a more detailed Event History, which replicates the Event Log of our new back-office solution.
Please note that "Inactive:" events refers to events no longer in use in our new back-office solution.
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Description | Date |
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Application Not Reinstated by Deadline | 2017-01-18 |
Inactive: Dead - No reply to s.30(2) Rules requisition | 2017-01-18 |
Inactive: Abandoned - No reply to s.30(2) Rules requisition | 2016-01-18 |
Inactive: S.30(2) Rules - Examiner requisition | 2015-07-17 |
Inactive: Report - No QC | 2015-07-16 |
Letter Sent | 2015-03-03 |
Amendment Received - Voluntary Amendment | 2015-02-16 |
Reinstatement Requirements Deemed Compliant for All Abandonment Reasons | 2015-02-16 |
Reinstatement Request Received | 2015-02-16 |
Inactive: Advanced examinat (SO)-Green - Revoked | 2014-04-23 |
Inactive: Abandoned - No reply to s.30(2) Rules requisition | 2014-02-14 |
Inactive: S.30(2) Rules - Examiner requisition | 2013-11-14 |
Inactive: Report - QC passed | 2013-10-22 |
Withdraw from Allowance | 2013-08-20 |
Inactive: Office letter | 2013-08-20 |
Inactive: Adhoc Request Documented | 2013-08-20 |
Letter Sent | 2013-06-18 |
Inactive: Final fee received | 2013-06-05 |
Inactive: Protest/prior art received | 2013-05-29 |
Notice of Allowance is Issued | 2013-05-13 |
Letter Sent | 2013-05-13 |
Notice of Allowance is Issued | 2013-05-13 |
Inactive: Approved for allowance (AFA) | 2013-05-09 |
Letter Sent | 2013-03-08 |
Amendment Received - Voluntary Amendment | 2013-03-01 |
Inactive: S.30(2) Rules - Examiner requisition | 2012-12-04 |
Inactive: S.30(2) Rules - Examiner requisition | 2012-12-03 |
Amendment Received - Voluntary Amendment | 2012-10-03 |
Inactive: S.30(2) Rules - Examiner requisition | 2012-07-03 |
Application Published (Open to Public Inspection) | 2012-05-22 |
Letter sent | 2012-05-22 |
Advanced Examination Determined Compliant - Green | 2012-05-22 |
Inactive: Cover page published | 2012-05-21 |
Inactive: Filing certificate - RFE (English) | 2012-04-17 |
Inactive: Filing certificate correction | 2012-04-05 |
Inactive: IPC assigned | 2012-03-30 |
Inactive: First IPC assigned | 2012-03-30 |
Inactive: IPC assigned | 2012-03-30 |
Inactive: IPC assigned | 2012-03-30 |
Inactive: Filing certificate - RFE (English) | 2012-03-26 |
Letter Sent | 2012-03-26 |
Application Received - Regular National | 2012-03-26 |
Inactive: Advanced examination (SO) | 2012-03-08 |
Request for Examination Requirements Determined Compliant | 2012-03-08 |
All Requirements for Examination Determined Compliant | 2012-03-08 |
Abandonment Date | Reason | Reinstatement Date |
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2015-02-16 |
The last payment was received on 2015-12-11
Note : If the full payment has not been received on or before the date indicated, a further fee may be required which may be one of the following
Patent fees are adjusted on the 1st of January every year. The amounts above are the current amounts if received by December 31 of the current year.
Please refer to the CIPO
Patent Fees
web page to see all current fee amounts.
Fee Type | Anniversary Year | Due Date | Paid Date |
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Application fee - standard | 2012-03-08 | ||
Request for examination - standard | 2012-03-08 | ||
Registration of a document | 2013-02-18 | ||
2013-06-05 | |||
MF (application, 2nd anniv.) - standard | 02 | 2014-03-10 | 2014-02-11 |
MF (application, 3rd anniv.) - standard | 03 | 2015-03-09 | 2015-02-16 |
Reinstatement | 2015-02-16 | ||
MF (application, 4th anniv.) - standard | 04 | 2016-03-08 | 2015-12-11 |
Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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TOROMONT INDUSTRIES LTD. |
Past Owners on Record |
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SERGE DUBE |