Spring-locking handle mechanism
CA 1238889 A · Owner: American Standard Inc. · Inventors: Ferry, Gene S.; Scott, Daniel G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A spring-locking handle mechanism in which a flat piece of spring stock is formed in a generally U-shaped configuration to provide a locking spring, one leg of which bears against the underside of the socket portion of a conventional two-piece locking handle, and the other leg of which bears downwardly on the upper surface of the handle portion. The spring legs must be spread apart in order to assemble the spring with the handle mechanism and are thus normally under tension, so that the handle portion is biased in its downward or locking position relative to the socket portion to discourage unintentional lifting. The width of the one leg corresponds to the distance between the depending …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted July 5, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 5, 2005.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.