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Patent 20420 Summary

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Claims and Abstract availability

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(12) Patent: (11) CA 20420
(21) Application Number: 20420
(54) English Title: DOOR LOCK
(54) French Title: SERRURE DE PORTE
Status: Term Expired - Post Grant Beyond Limit
Bibliographic Data
(51) International Patent Classification (IPC): N/A
(72) Inventors :
  • MORGAN, WILLIAM F. (Canada)
  • HUGHES, ROBERT (Canada)
(73) Owners :
  • WILLIAM F. MORGAN
  • ROBERT HUGHES
(71) Applicants :
(74) Agent:
(74) Associate agent:
(45) Issued: 1884-10-24
(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

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Claims

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

Claim lst. The bolt D attached to the end of the pivoted lever F, and arranged to protrude above the plate H, the spring I located, as -specified, in combination with the door A having a hole E made in its bottom, substantially as and for the purpose specified. 2nd. The pivoted lever F actuated by the spring 1 and having the bolt D attached to it.in combination with a pivoted lever J connected to the lever F. and actuated by the bar K, substantially as and for the purpose specified. 3rd. The pivoted lever F actuated by the spring 1, and having attached to it at one end the bolt D, and at its other end the lever J,in combination with the bar K having a rounded end is and actuated by the bar L, substantially as and for the purpose specified. 4th. The bolt N attached to the lever 0 and arranged to extend below the bottom of the door A, in combination with a bolt P attached to the other end of the pivoted lever 0, and located below a hole made in the bottom of the closed door B, substantially as and for the purpose specified.
Description

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Representative Drawing

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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.

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Event History

Description Date
Inactive: Expired (old Act Patent) latest possible expiry date 1902-10-24
Grant by Issuance 1884-10-24

Abandonment History

There is no abandonment history.

Owners on Record

Note: Records showing the ownership history in alphabetical order.

Current Owners on Record
WILLIAM F. MORGAN
ROBERT HUGHES
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.
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