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Expired Canadian patentCanada

Irish moss harvester

CA 1089655 A · Owner: Pace, Dan R. · Inventors: Pace, Dan R.

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

A harvester for plants such as Irish moss is disclosed. The harvester may be towed along the sea bed by a surface vessel and provides for the continuous pumping of harvested plants to the vessel by way of an enclosed conduit. The harvester includes a plurality of axially spaced harvest rollers rotatably mounted in a frame. A plurality of guide rollers are pivotally mounted relative to the harvest rollers in advance thereof with each guide roller being longitudinally aligned with a corresponding space between adjacent harvest rollers. A continuous mesh-like harvest belt extends around the guide and harvest rollers with the lengthwise members thereof being entrained around the guide rollers …

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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 November 18, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 18, 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.
FiledMarch 26, 1979
GrantedNovember 18, 1980
Term endedNovember 18, 1997
Patent numberCA 1089655 A
Classification (IPC)A01D44/00

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Application filedMarch 26, 1979Patent grantedNov 18, 1980Term endedNov 18, 1997

Sources & verification

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