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Expired Canadian patentCanada

Polyamide adhesive for bonding fabrics

CA 1104749 A · Owner: Henkel Corporation · Inventors: Peerman, Dwight E.; Kanten, H. Gordon

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

There is disclosed a polyamide adhesive for bonding fabrics, particularly fusible interliners for fabrics which, are cleanable by laundering and/or dry cleaning. The polyamide adhesive is a terpolyamide of caprolactam and hexamethylene diamine with a mixture of polymeric fat acids and an aliphatic co-dicarboxylic acid having 10-12 carbon atoms.

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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.
FiledNovember 24, 1978
GrantedJuly 7, 1981
Term endedJuly 7, 1998
Patent numberCA 1104749 A
Classification (IPC)C08G69/36 +2 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedNov 24, 1978Patent grantedJuly 7, 1981Term endedJuly 7, 1998

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.