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Patent 30463 Summary

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Claims and Abstract availability

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(12) Patent: (11) CA 30463
(21) Application Number: 30463
(54) English Title: RESPIRATOR
(54) French Title: APPAREIL RESPIRATEUR
Status: Term Expired - Post Grant Beyond Limit
Bibliographic Data
(51) International Patent Classification (IPC): N/A
(72) Inventors :
  • LOCKE, JOSEPH C. (Canada)
(73) Owners :
  • JOSEPH C. LOCKE
(71) Applicants :
(74) Agent:
(74) Associate agent:
(45) Issued: 1888-12-24
(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 In a respirator, the combination of a tapering tabular shell, provided with perforations extending all around and throughout the greater portion of the said shell, and a fibrous air filtering mesh work, the fibres of which are threaded through the said perforations, substantially as described. 2nd In a respirator, the combination, with a tapering tubular shell provided with perforations extending all around and throughout the greater portion of said shell, an air filtering mesh work formed of human hair, the fibres of which are threaded through the perforations, and an exterior protective coating, substantially as herein shown and described. 3rd An improved nasal respirator, consisting of two tapering tubular shells, provided with perforations extending all around and through the greater portion of the shell, a fibrous air-filtering material, the fibres of which are threaded through the said perforations, an external protective covering, a yoke connecting the two shells, and a screw for adjusting the yoke, substantially as described. 4th In a respirator, the combination, with a filtering device for the mouth, a pair of filtering devices for the nostrils, and an adjustable yoke uniting the nostril filtering device, of fastening devices connecting the yoke to the mouth filtering device, substantially as described.
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 1906-12-24
Grant by Issuance 1888-12-24

Abandonment History

There is no abandonment history.

Owners on Record

Note: Records showing the ownership history in alphabetical order.

Current Owners on Record
JOSEPH C. LOCKE
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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