Fire protective mastic and fire stop
CA 1115450 A · Owner: Pedlow, J. Watson · Inventors: Pedlow, J. Watson
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fire protective mastic is provided whose essential, component are solids including a low fusing ceramic frit hydrated solids having chamically bonded water which is released a fire protective water vapor when heated solids which expand or intumesce during the same heat application to form a porous, expanded or foamy insulating body, solids which have a fire break affect such as anti-, mony oxide and zinc tetraborate and binder solids which, are thermoplastic resins and serve to bind the solids into a flexible coating when applied, the binder solids being dispersed as an emulsion in water and mixed with the other solids to form a mastic. With further addition of water it is converted to a …
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 December 29, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 29, 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.