Device to support and protect documents
CA 2010573 C · Owner: Crow, Tommi L. · Inventors: Crow, Tommi L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device to support and protect documents which may, be damaged when contacted with water uses a tubular body, constructed of a material sufficiently transparent to allow visual observation when the documents are disposed within a chamber in the body. The body has first and second ends and a wall extending between the first and second ends so as to circumscribe the chamber. Attaching apparatus is connected to the tubular body for attaching the tubular body to a support member. A first stopper is connected to the body for preventing moisture from gaining access through the first end into the chamber in the body. A second stopper is selectively connected to the body for preventing moisture …
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 February 21, 1990 and granted September 13, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 21, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 21, 2012.
- 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.