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Expired Canadian patentCanada

Combination checkwriting and bookkeeping assembly and method of using same

CA 1100159 A · Owner: Data Management, Incorporated · Inventors: Aziz, Paul D.; Hincks, Robert W.

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

AS bookkeeping and check writing system enables simultaneous entry of payee and numerical disbursement amount upon the check and an underlying disbursement sheet and, when desired, a duplicate sheet such as a separable voucher sheet. The disbursement sheet has payee and numerical disbursement columns spaced cooperatively to the blanks appearing or standard commercial checks and a transfer sheet is secured in overlying position. A shield member is positioned upon the transfer sheet and supports a check thereon so that the payee and disbursement blanks are aligned with the columns of the disbursement sheet. The shield member has an aperture therein coinciding with the appropriate blanks so …

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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 28, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 28, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 12, 1978
GrantedApril 28, 1981
Term endedApril 28, 1998
Patent numberCA 1100159 A
Classification (IPC)B41L1/22 +1 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedDec 12, 1978Patent grantedApril 28, 1981Term endedApril 28, 1998

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