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Any discrepancies in the text and image of the Claims and Abstract are due to differing posting times. Text of the Claims and Abstract are posted:
| (12) Patent Application: | (11) CA 2292868 |
|---|---|
| (54) English Title: | HEAT RECOVERY FROM SEWER VENTING STACK |
| (54) French Title: | RECUPERATION DE CHALEUR A PARTIR DE CHEMINEE DE MISE A L'AIR LIBRE D'EGOUT |
| 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: | |
| (74) Associate agent: | |
| (45) Issued: | |
| (22) Filed Date: | 1999-12-15 |
| (41) Open to Public Inspection: | 2001-06-15 |
| Availability of licence: | N/A |
| Dedicated to the Public: | N/A |
| (25) Language of filing: | English |
| Patent Cooperation Treaty (PCT): | No |
|---|
| (30) Application Priority Data: | None |
|---|
In a typical heat recovery system there is some concern that the heat absorbed
by the evaporator
of a compressor is robbed from the heat needed to heat the house. As a
solution to this confusion
a concept to absorb the heat from the venting stack of a sewer system will
address this concern,
please refer to the drawing as shown.
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.
For a clearer understanding of the status of the application/patent presented on this page, the site Disclaimer , as well as the definitions for Patent , Event History , Maintenance Fee and Payment History should be consulted.
| Description | Date |
|---|---|
| Inactive: IPC from MCD | 2006-03-12 |
| Application Not Reinstated by Deadline | 2002-12-16 |
| Time Limit for Reversal Expired | 2002-12-16 |
| Inactive: Adhoc Request Documented | 2002-09-23 |
| Deemed Abandoned - Failure to Respond to Maintenance Fee Notice | 2001-12-17 |
| Application Published (Open to Public Inspection) | 2001-06-15 |
| Inactive: Cover page published | 2001-06-14 |
| Inactive: First IPC assigned | 2000-02-02 |
| Inactive: IPC assigned | 2000-02-02 |
| Inactive: IPC assigned | 2000-02-02 |
| Inactive: Office letter | 2000-01-19 |
| Application Received - Regular National | 2000-01-18 |
| Filing Requirements Determined Compliant | 2000-01-18 |
| Inactive: Filing certificate - No RFE (English) | 2000-01-18 |
| Abandonment Date | Reason | Reinstatement Date |
|---|---|---|
| 2001-12-17 |
| Fee Type | Anniversary Year | Due Date | Paid Date |
|---|---|---|---|
| Application fee - small | 1999-12-15 |
Note: Records showing the ownership history in alphabetical order.
| Current Owners on Record |
|---|
| PETER BEAINI |
| GILBERT DIB |
| Past Owners on Record |
|---|
| None |
