Expired Canadian patentCanada
Granular starch as sunscreen agent in aqueous compositions
CA 2104080 C · Owner: Ablestik Laboratories · Inventors: Nowak, Frank A.; Pasapane, Joseph; Martino, Gary T.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sunscreen composition comprising a natural based uncooked granular, starch material as the sunscreen agent incorporated in a pharmaceutically acceptable aqueous based starch carrier.
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 13, 1993 and granted October 20, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 13, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 13, 2015.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 13, 1993
GrantedOctober 20, 1998
Term endedAugust 13, 2013
Patent numberCA 2104080 C
Classification (IPC)C08L3/00
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.