Anti-foam silicone composition
CA 1104453 A · Owner: General Electric Company · Inventors: Simoneau, Edward T.; Sheridan, John J. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An anti-foam silicone composition comprising a diorganopolysiloxane polymer having a viscosity varying from 100 to 100,000 centipoise at 25°C and from 1 to 15% by weight of the diorganopolysiloxane of a silicone resin composed of monofunctional units and tetrafunctional units.
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 July 7, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 7, 1998.
- 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.