Evacuated, encapsulating packaging
CA 2127449 C · Owner: Jarvis, Judith A. · Inventors: Jarvis, Judith A.; Jarvis, David C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a sealed pliable bag (12) containing, loose particles (10) adapted for evacuation by use of a valve (50) or an air tube (48), inserted through the bag and subsequently heat sealed upon withdrawal of the air tube. The particle-filled bag is placed in contact with an article (36) and evacuated so as to conform with the size and shape of at least a portion of the article. Additional particle-filled bags (62 66) may be positioned, over a remaining portion of the article (36). In another embodiment, air may be introduced into the bags after the bags and, article are positioned in a closed container such as by puncturing, or by use of a valve allowing the bag to expand …
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 November 3, 1993 and granted July 6, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 3, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 3, 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.
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.