Disposable film package and holder for use therewith
CA 1267555 C · Owner: Hoffman, Robert H. Jr. · Inventors: Hoffman, Robert H. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A disposable package for cut photographic film and a holder adopted for use therewith. The film package provides a light excluding envelope into which is inserted a planar carrier bearing a sheet of photographic film affixed thereto by an adhesive backed opaque mask element. One end of the carrier has an elongated tab which, together with the end of the envelope, extends substantially outside the holder when the film package is fully inserted therein and which may be, grasped along with the envelope to facilitate withdrawal of the package from the holder. The open end of the envelope is rendered light tight when the carrier is fully inserted therein by the engagement of the edges of the …
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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 April 10, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 10, 2007.
- 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.