Non-woven fabric construction for detergent pouch
CA 2042287 A1 · Owner: Colgate-Palmolive · Inventors: Mack, Robert J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
IR#4687, NON-WOVEN FIBRIC CONSTRUCTION FOR DETERGENT POUCH, ABSTRACT OF THE DISCLOSURE A laundry detergent pouch comprising a non-woven web of non-woven sensitive material normally having interstices capable of passing laundry detergent powder. The web is compressed and bonded while, compressed, to hold the fibers in compressed condition filling the interstices to prevent passage of detergent powder outwardly thereof.
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 May 10, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 10, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 10, 2013.
- 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.