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Expired Canadian patentCanada

Disposable device

CA 1283643 C · Owner: Redstone, June Margaret · Inventors: Redstone, June Margaret; Scott, Stephen Douglas

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 device for enabling the safe disposal of contaminated used disposable blades, needles and other, sharps resulting from surgery or medical treatment comprises a container (1) having two compartments a, first, closed compartment (2) including a slot (163 and a re-entrant wall portion (12) and a second compartment (3) including a hinged lid (4). Means (8, 9) are provided inside the second compartment (3) securely to hold used needles (22, 23, 24) and a catch (7) is provided to hold the lid (4) of the second compartment (3) closed. The slot (16) and re-entrant wall portion (12) enable a used blade to be inserted into the slot (16) with the re-entrant wall portion accommodating a handle upon …

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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 April 30, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 30, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 7, 1987
GrantedApril 30, 1991
Term endedApril 30, 2008
Patent numberCA 1283643 C
Classification (IPC)B65D85/24

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedAug 7, 1987Patent grantedApril 30, 1991Term endedApril 30, 2008

Sources & verification

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