Expired Canadian patentCanada
Binder for abrasive greenware
CA 1295487 C · Owner: Chiu, Thomas T. · Inventors: Chiu, Thomas T.; Schuetz, James E.; Tiefenbach, Lawrence W. 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
Abrasive greenware having improved strength is prepared using a binder comprising poly(ethyloxazoline). 36,129-F, ?
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
- Granted February 11, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 11, 2009.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 12, 1988
GrantedFebruary 11, 1992
Term endedFebruary 11, 2009
Patent numberCA 1295487 C
Classification (IPC)B24D3/28 +2 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.