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Patent 22722 Summary

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Claims and Abstract availability

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(12) Patent: (11) CA 22722
(21) Application Number: 22722
(54) English Title: SOUND AMPLIFICATOR FOR PIANOS, ETC.
(54) French Title: APPAREIL POUR AUGMENTER LE SON POUR PIANOS, ETC.
Status: Term Expired - Post Grant Beyond Limit
Bibliographic Data
(51) International Patent Classification (IPC): N/A
(72) Inventors :
  • VIGER, FRANCOIS E. (Canada)
  • BROSSEAU, JULIEN (Canada)
(73) Owners :
  • FRANCOIS E. VIGER
  • JULIEN BROSSEAU
(71) Applicants :
(74) Agent:
(74) Associate agent:
(45) Issued: 1885-11-02
(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 A sound amplicator having the shape and form shown in the annexed drawing cast in two pieces and provided with concave top A bottom B holes b teeth C and projections a as above described and for the purposes set forth.
Description

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Representative Drawing

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Administrative Status

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Event History

Description Date
Inactive: Expired (old Act Patent) latest possible expiry date 1903-11-02
Grant by Issuance 1885-11-02

Abandonment History

There is no abandonment history.

Owners on Record

Note: Records showing the ownership history in alphabetical order.

Current Owners on Record
FRANCOIS E. VIGER
JULIEN BROSSEAU
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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