Disposable filter unit
CA 1062631 A · Owner: Whatman Reeve Angel Limited · Inventors: Strauss, Richard; Kimball, Philip C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A disposable filter unit which comprises a selfgasketing, self-supporting, bonded, glass-fiber filter tube sealed in a housing with two similar plastic molded end units with one peripheral edge of the tube compressed against the interior face surface of one end unit, and the other peripheral edge against a solid surface disc element within the housing.
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 September 18, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 18, 1996.
- 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.