Video cassette combined dust door and dust door latch spring
CA 2050398 A1 · Owner: Shape Inc. · Inventors: Lovecky, Craig; Fitzsimmons, W. Tyler; Lowry, Alan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tape cassette dust door and dust door latch are biased, in a first embodiment, via a torsion spring including a coil, a short leg and a long leg having an offset, extending therefrom. The short leg and coil fit onto a polar member on the door and the long leg extends therefrom. The offset is received in a groove in the cover and a free end of the long leg abuts a projection formed on the latch. In an alternate embodiment the latch includes a, flexing member which allows a second lower portion of the latch to flex relative to a first upper portion, and a leaf spring integrally formed at the first upper portion. The dust door polar member has a cam lobe which cooperates with the leaf …
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
- Filed August 30, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 30, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 30, 2013.
- 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.