Low profile, rubber keypad
CA 1306036 C · Owner: Jungels-Butler, Polly Sue · Inventors: Beutler, Scott David; Jungels-Butler, Polly Sue
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
CE00080R, Abstract of the Disclosure, A low-profile rubber keypad (100) with good tactile feel and illuminability includes a plurality of layers adhesively bonded to one another. The top layer (102) of the keypad is a silicone rubber overlay having a plurality of keys protruding therefrom. The rubber overlay (102) is adhesively bonded to an actuation layer (106) including a plurality of thin actuating strips. The actuation layer (106) is adhesively bonded to a tactile layer (110) including a plurality of collapsible resilient domes. The tactile layer (110) is adhesively bonded to a shorting layer (114) including a plurality of conductors (134). The shorting layer (114) is adhesively bonded …
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 August 4, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 4, 2009.
- 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.