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Expired Canadian patentCanada

Quiet, strong cloth-like tissue laminate

CA 1047384 A · Owner: Buckeye Cellulose Corporation (The) · Inventors: Lafitte, Larry L.; Camden, James B.

CIPO record

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

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Abstract From the Canadian patent

Improved tissue, continuous filament nonwoven laminates which are characterized by relatively high strength or toughness, relatively high loft and drape together with low noise or paper-like rattle. The improved tissue continuous filament nonwoven laminates while exhibiting, a relatively high strength are comprised of a low tensile, strength low basis weight, lightly bonded or unbonded layer of continuous filament nonwoven which is impregnated with about 50% to about 120%, based on the continuous filament nonwoven layer basis weight, of soft, tacky latex solids. The impregnated continuous filament nonwoven is combined under minimum combining pressures, while in the impregnated moist state, …

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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 January 30, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 30, 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.
Filed—
GrantedJanuary 30, 1979
Term endedJanuary 30, 1996
Patent numberCA 1047384 A
Classification (IPC)B32B29/02 +2 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedJan 30, 1979Term endedJan 30, 1996

Sources & verification

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