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Expired Canadian patentCanada

Universal internal tube accumulator

CA 1092380 A · Owner: General Motors Corporation · Inventors: Livesay, J.D.; Widdowson, Richard E.; Schlotterbeck, Earl S.

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 vehicle air conditioning system compact suction accumulator-dehydrator adaptable for multiple applications to trap liquid refrigerant flowing from the evaporator. The accumulator comprises a hollow vertically disposed tubular casing, providing top and bottom imperforate wall portions. The casing has an inlet and an outlet located in a side of the casing adjacent its top portion in substantial axial alignment. A generally U-shaped tube is located in the casing chamber with one end having a generally right-angled portion projecting into the outlet in a manner to hangingly support the tube in the chamber. An inverted cup-shaped baffle is supported in spaced relation on the tube other end for …

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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 December 30, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 30, 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.
FiledMay 2, 1979
GrantedDecember 30, 1980
Term endedDecember 30, 1997
Patent numberCA 1092380 A
Classification (IPC)F25B1/00

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Application filedMay 2, 1979Patent grantedDec 30, 1980Term endedDec 30, 1997

Sources & verification

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