Language selection

/ Gouvernement du Canada
Search

Patent 391375 Summary

Third-party information liability

Some of the information on this Web page has been provided by external sources. The Government of Canada is not responsible for the accuracy, reliability or currency of the information supplied by external sources. Users wishing to rely upon this information should consult directly with the source of the information. Content provided by external sources is not subject to official languages, privacy and accessibility requirements.

Claims and Abstract availability

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:

  • At the time the application is open to public inspection;
  • At the time of issue of the patent (grant).
(12) Patent: (11) CA 391375
(21) Application Number: 391375
(54) English Title: ROUND BOILER
(54) French Title: CHAUDIERE RONDE
Status: Term Expired - Post Grant Beyond Limit
Bibliographic Data
(51) International Patent Classification (IPC):
  • A47J 31/44 (2006.01)
  • A47J 36/00 (2006.01)
  • B1D 53/00 (2006.01)
  • B2C 13/00 (2006.01)
  • B22D 11/00 (2006.01)
  • B23D 45/00 (2006.01)
  • B23D 47/00 (2006.01)
  • B23K 37/00 (2006.01)
  • B23P 15/00 (2006.01)
  • B24B 5/00 (2006.01)
  • B24B 27/033 (2006.01)
  • B66F 11/04 (2006.01)
  • C21C 7/00 (2006.01)
  • C21D 6/00 (2006.01)
  • C21D 9/00 (2006.01)
  • C22C 33/00 (2006.01)
  • C22C 38/00 (2006.01)
  • F16F 15/04 (2006.01)
  • F22B 37/10 (2006.01)
  • F23C 5/00 (2006.01)
  • F23H 11/18 (2006.01)
  • F23J 1/06 (2006.01)
  • F23J 15/02 (2006.01)
  • F23K 1/00 (2006.01)
  • F23K 3/00 (2006.01)
  • F24B 1/02 (2006.01)
  • F24B 9/04 (2006.01)
  • F24B 13/00 (2006.01)
  • F24H 1/00 (2022.01)
  • F24H 9/00 (2022.01)
  • F26B 15/18 (2006.01)
  • F26B 21/14 (2006.01)
  • F26B 25/00 (2006.01)
  • F27D 1/18 (2006.01)
  • F28F 9/18 (2006.01)
  • F28F 19/00 (2006.01)
  • G5B 19/04 (2006.01)
(72) Inventors :
(73) Owners :
(71) Applicants :
(74) Agent:
(74) Associate agent:
(45) Issued: 1940-09-17
(22) Filed Date:
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

Abstracts

Sorry, the abstracts for patent document number 391375 were not found.

Claims

Note: Claims are shown in the official language in which they were submitted.

Sorry, the claims for patent document number 391375 were not found.
Text is not available for all patent documents. The current dates of coverage are on the Currency of Information  page

Description

Note: Descriptions are shown in the official language in which they were submitted.

Sorry, the description for patent document number 391375 was not found. Text is not available for all patent documents. The current dates of coverage are on the Currency of Information  page

Representative Drawing

Sorry, the representative drawing for patent document number 391375 was not found.

Administrative Status

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.

Event History

Description Date
Inactive: IPC from PCS 2023-05-20
Inactive: IPC from PCS 2023-05-20
Inactive: IPC from PCS 2023-05-20
Inactive: IPC from PCS 2023-05-20
Inactive: IPC from PCS 2023-05-20
Inactive: IPC from PCS 2023-05-20
Inactive: IPC from PCS 2023-05-20
Inactive: IPC from PCS 2023-05-20
Inactive: IPC from PCS 2023-05-20
Inactive: IPC from PCS 2023-05-20
Inactive: IPC from PCS 2023-05-20
Inactive: IPC from PCS 2023-05-20
Inactive: IPC from PCS 2023-05-20
Inactive: IPC from PCS 2023-05-20
Inactive: IPC from PCS 2023-05-20
Inactive: IPC from PCS 2023-05-20
Inactive: IPC from PCS 2023-05-20
Inactive: IPC from PCS 2023-05-20
Inactive: IPC from PCS 2023-05-20
Inactive: IPC from PCS 2023-05-20
Inactive: IPC from PCS 2023-05-20
Inactive: IPC from PCS 2023-05-20
Inactive: IPC from PCS 2023-05-20
Inactive: IPC from PCS 2023-05-20
Inactive: IPC from PCS 2023-05-20
Inactive: IPC from PCS 2023-05-20
Inactive: IPC from PCS 2023-05-20
Inactive: IPC from PCS 2023-05-20
Inactive: IPC from PCS 2023-05-20
Inactive: IPC from PCS 2023-05-20
Inactive: IPC from PCS 2023-05-20
Inactive: IPC from PCS 2023-05-20
Inactive: IPC from PCS 2023-05-20
Inactive: IPC from PCS 2023-05-20
Inactive: IPC from PCS 2023-05-20
Inactive: IPC from PCS 2023-05-20
Inactive: IPC from PCS 2023-05-20
Inactive: Expired (old Act Patent) latest possible expiry date 1957-09-17
Grant by Issuance 1940-09-17

Abandonment History

There is no abandonment history.

Owners on Record

Note: Records showing the ownership history in alphabetical order.

Current Owners on Record
None
Past Owners on Record
None
Past Owners that do not appear in the "Owners on Record" listing will appear in other documentation within the application.
Documents

To view selected files, please enter reCAPTCHA code :



To view images, click a link in the Document Description column (Temporarily unavailable). To download the documents, select one or more checkboxes in the first column and then click the "Download Selected in PDF format (Zip Archive)" or the "Download Selected as Single PDF" button.

List of published and non-published patent-specific documents on the CPD .

If you have any difficulty accessing content, you can call the Client Service Centre at 1-866-997-1936 or send them an e-mail at CIPO Client Service Centre.

 Download Selected in PDF format (Zip Archive)
 Download Selected as Single PDF
Document
Description 		 Date
(yyyy-mm-dd) 		 Number of pages   Size of Image (KB) 
Drawings 1995-09-05 2 148
Claims 1995-09-05 6 232
Descriptions 1995-09-05 9 299