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Patent 28731 Summary

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Claims and Abstract availability

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(12) Patent: (11) CA 28731
(21) Application Number: 28731
(54) English Title: LAMP
(54) French Title: LAMPE
Status: Term Expired - Post Grant Beyond Limit
Bibliographic Data
(51) International Patent Classification (IPC): N/A
(72) Inventors :
  • ENGLISH, PETER (Canada)
(73) Owners :
  • PETER ENGLISH
(71) Applicants :
(74) Agent:
(74) Associate agent:
(45) Issued: 1888-03-21
(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 lamp, a superheating chamber formed of upright bars F, in combination with a plate G, for the purpose specified. 2nd In a lamp, a serrated base E, which breaks the connection between the superheating chamber and the inside flue or wick tube, and allows the air to pass between the base and the flue, to prevent the burner heating, as set forth. 3rd In a lamp, the bars F and Plate G forming a superheating chamber, in combination with a base E, for the purposes set forth. 4th In an argand lamp, the chim¬ney D formed with the contraction d, substantially as shown and described and for the purpose specified, 5th In a lamp, the chimney D formed with the contraction d1, in combination with the wick tubes B, Bi, perforated ring C, wick H, reservoir A, upright bars F, plate G and serrated base E, substantially as shown and described 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 1906-03-21
Grant by Issuance 1888-03-21

Abandonment History

There is no abandonment history.

Owners on Record

Note: Records showing the ownership history in alphabetical order.

Current Owners on Record
PETER ENGLISH
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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