Limited use combined mailer and video cassette and method of forming same
CA 2068738 C · Owner: Klupt, Carle D. · Inventors: Klupt, Carle D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A disposable video cassette for rotatably mounting a pair of reels for a recording tape in juxtaposition to allow transfer of the tape from one reel to the other as they are rotated in unison when the cassette is operating in a video, cassette recorder (VCR) has a housing formed from a position of a singly flat paperboard blank having plural cutouts and fold lines for mounting the reels and accommodating rotation therein, for loading the cassette directly into the VCR. A pair of the cutouts is spaced apart in one side of the housing to expose the respective rotational driving mechanisms of the pair of reels in the, housing, for mating with the driving mechanism of the VCR when 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
- Filed November 21, 1990 and granted August 29, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 21, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 21, 2012.
- 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.