Expired Canadian patentCanada
Mail thickness measuring apparatus
CA 2004114 C · Owner: Pitney Bowes Inc. · Inventors: Dolan, Donald T.; Tolmie, Robert James, Jr.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a mail handling machine, mail thickness measuring apparatus associated with a singulator mechanism for measuring mail thickness as soon as individual mail pieces are separated by the singulator from a stack of mail pieces.
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 29, 1989 and granted January 22, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 29, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 29, 2011.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 29, 1989
GrantedJanuary 22, 2002
Term endedNovember 29, 2009
Patent numberCA 2004114 C
Classification (IPC)G01B7/06 +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.