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Patent 13428 Summary

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Claims and Abstract availability

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(12) Patent: (11) CA 13428
(21) Application Number: 13428
(54) English Title: IMPROVEMENTS IN DOORS
(54) French Title: PERFECTIONNEMENTS DANS LES PORTES
Status: Term Expired - Post Grant Beyond Limit
Bibliographic Data
(51) International Patent Classification (IPC): N/A
(72) Inventors :
  • SEXTON, WILLIAM F. (Canada)
  • SEXTON, WILLIAM F. JR. (Canada)
(73) Owners :
  • WILLIAM F. SEXTON
  • WILLIAM F. JR. SEXTON
(71) Applicants :
(74) Agent:
(74) Associate agent:
(45) Issued: 1881-09-17
(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

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Claims

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

Claim lst A hingedd door A having a spindle B extending from its pivotal point, a pulley or level pinion D fastened to the said spindle, in combination with a weight J connected to and arranged to operate through the pulley or pinion D upon the door A. 2nd A hinged door A having a spindle B extending from the pivotal point and adjustably supported on the bracket C, a pulley D fastened to the spindle B in combination with an endless strap E passing around the pulleys D F and weighted by the weight J. 3rd A hinged door having a spindle extending from its pivotal point, a pulley fastened to the spindle, in combination with a strap adjustably fastened to the pulley on the said spindle and weighted so as to exert a counterbalancing power over the hinged door. 4th A hinged door having a spindle extending from its pivotal point, a bevel spur wheel D fastened to the spindle and meshing with a bevel spur wheel M, in combination with a weight connected to the bevel spur wheel M and arranged to exert a counterbalancing power over the hinged door.
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 1899-09-17
Grant by Issuance 1881-09-17

Abandonment History

There is no abandonment history.

Owners on Record

Note: Records showing the ownership history in alphabetical order.

Current Owners on Record
WILLIAM F. SEXTON
WILLIAM F. JR. SEXTON
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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