Language selection

/ Gouvernement du Canada
Search

Patent 552312 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 552312
(21) Application Number: 552312
(54) English Title: CHAIN REACTIONS
(54) French Title: REACTIONS A CHAINE
Status: Term Expired - Post Grant Beyond Limit
Bibliographic Data
(51) International Patent Classification (IPC):
  • G21C 1/06 (2006.01)
  • G21C 7/00 (2006.01)
(72) Inventors :
  • ENRICO FERMI,
  • LEO SZILARD,
(73) Owners :
  • ATOMIC ENERGY OF CANADA LIMITED - ENERGIE ATOMIQUE DU CANADA, LIMITEE
(71) Applicants :
(74) Agent:
(74) Associate agent:
(45) Issued: 1958-01-28
(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 552312 were not found.

Claims

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

Sorry, the claims for patent document number 552312 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 552312 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 552312 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 2021-12-11
Inactive: First IPC from PCS 2021-12-11
Inactive: IPC from PCS 2021-12-11
Inactive: Expired (old Act Patent) latest possible expiry date 1975-01-28
Grant by Issuance 1958-01-28

Abandonment History

There is no abandonment history.

Owners on Record

Note: Records showing the ownership history in alphabetical order.

Current Owners on Record
ATOMIC ENERGY OF CANADA LIMITED - ENERGIE ATOMIQUE DU CANADA, LIMITEE
Past Owners on Record
ENRICO FERMI
LEO SZILARD
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. 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 1995-03-24 27 1,526
Claims 1995-03-24 4 131
Descriptions 1995-03-24 143 6,292