Canadian application, no grantCanada
Shingle bundle with vented wrapper
CA 2059446 A1 · Owner: Borbidge, Francis A. · Inventors: Borbidge, Francis A.
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 bundle of shingles has a plastic film wrapper with the wrapper perforated on the bottom of the bundle with a plurality of slits or openings for draining moisture from the bundle.
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 January 16, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 16, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 16, 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.
FiledJanuary 16, 1992
GrantedNo grant recorded
Term endedJanuary 16, 2012
Patent numberCA 2059446 A1
Classification (IPC)B65D85/62 +1 more
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.