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Expired Canadian patentCanada

Sewing machine material preassembly system

CA 1087032 A · Owner: Cluett, Peabody & Co. Inc. · Inventors: Rockerath, John L.; Schreck, Harold J.

CIPO record

Overview

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

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Abstract From the Canadian patent

A sewing machine installation for sewing shirt front box hems and having a first underlying belt conveyor for individually conveying shirt front material blanks longitudinally forwardly along a lower main support table through a shirt front edge folder and a second overlying belt conveyor for individually conveying separate box hem material blanks with a liner tape longitudinally forwardly along an upper auxiliary table section through a box hem edge folder and into superimposed preassembled association with the prefolded shirt front blanks; the overlying and underlying conveyors thereafter cooperating for conveying the preassembled shirt front box hems longitudinally forwardly along the …

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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 October 7, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 7, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 6, 1976
GrantedOctober 7, 1980
Term endedOctober 7, 1997
Patent numberCA 1087032 A
Classification (IPC)D05B1/00 +2 more

Timeline

Timeline From CIPO dates

1977198019831986198919921995Application filedOct 6, 1976Patent grantedOct 7, 1980Term endedOct 7, 1997

Sources & verification

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