Canadian application, no grantCanada
Glass cleaner having antifog properties
CA 2092927 A1 · Owner: Endres, Michael T. · Inventors: Endres, Michael T.; Patel, Shanker B.; Barone, Patrizia
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a cleaning composition for hard surfaces which comprises an aqueous solution of an acidic or basic cleaner, a surfactant together with a silicone glycol and xanthan gum as anti-fogging agents. MS #1691
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 March 30, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 30, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 30, 2015.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 30, 1993
GrantedNo grant recorded
Term endedMarch 30, 2013
Patent numberCA 2092927 A1
Classification (IPC)C11D3/37 +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.