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Patent 25633 Summary

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Claims and Abstract availability

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(12) Patent: (11) CA 25633
(21) Application Number: 25633
(54) English Title: COMBINED WATER AND TEMPERATURE INDICATOR
(54) French Title: INDICATEUR D'EAU ET DE TEMPERATURE
Status: Term Expired - Post Grant Beyond Limit
Bibliographic Data
(51) International Patent Classification (IPC): N/A
(72) Inventors :
  • GUYETTE, JOHN (Canada)
  • LAIRD, ROBERT W. (Canada)
(73) Owners :
  • JOHN GUYETTE
  • ROBERT W. LAIRD
(71) Applicants :
(74) Agent:
(74) Associate agent:
(45) Issued: 1886-12-28
(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

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Claims

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Claim lst A thermometer F placed within a glass tube C communicating directly with the interior of a hot water boiler, substantially as and for the purpose specified. 2nd A thermometer F supported in the interior of the glass tube C by the stool G, in combination with the cylinder A connected to the tube C by means of the passageways a and b, and to the boiler by means of the pipes B and E, substantially as and for the purpose specified. 3rd The thermometer F placed within the glass tube C, which is connected to the cylinder A by means of the passage-ways a and b, in combination with the pipes B and E, and cocks H, I and J, 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 1904-12-28
Grant by Issuance 1886-12-28

Abandonment History

There is no abandonment history.

Owners on Record

Note: Records showing the ownership history in alphabetical order.

Current Owners on Record
JOHN GUYETTE
ROBERT W. LAIRD
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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