Tandem recloseable package and method of making same
CA 2039580 A1 · Owner: Schwarz, Dean F. · Inventors: Schwarz, Dean F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A flexible tandem package which can be readily separated into two, distinct recloseable packages and the method for making the same is disclosed. The package includes first and second sheets sealed to opposite surfaces of a double recloseable seal fastener strip. The film sheets are further sealed hermetically together around the pariphery of each of the easily separable two distinct packages.
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 April 2, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 2, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 2, 2013.
- 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.