Deep embossed plastic film
CA 2102692 C · Owner: Tredegar Industries, Inc. · Inventors: Gross, Alvin W.; Tribble, James D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A deep embossed thermoplastic film (20 30) is disclosed. The film includes a plurality of macro cells (21 46). The macro, cells are interconnected by lands (22) extending between adjacent macro cells. The film also includes at least one plurality of micro depressions (24, 26, 47, 49), whereby a pleasing appearance and a proper feel are imparted.
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 June 30, 1992 and granted September 30, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 30, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 30, 2014.
- 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.