Watch case assembly
CA 1090591 A · Owner: Hewlett-Packard Company · Inventors: Holden, Thomas E.; Helmso, Bennie E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure There is disclosed a watch case assembly having a housing with non-cylindrical interior cavity and a cover with a circular hole therethrough for access to the interior cavity joined together by means of a split connecting ring. The connecting ring is formed with a threaded portion at one end and an outer flange on the ring at the other end. Recesses are formed into the interior walls of the cavity of the housing to form shoulders to engage the flange of the connecting ring in the final assembly. The hole through the cover is threaded to mate with the threaded portion of the connecting ring. Thus, in the final assembly as the, connecting ring is screwed into the …
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 December 2, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 2, 1997.
- 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.