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Expired Canadian patentCanada

Manifold carbonless form and process for the continuous production thereof

CA 1107955 A · Owner: The Mead Corporation · Inventors: Shackle, Dale R.; Davis, Gerald T.

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

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Abstract From the Canadian patent

of the Invention, This invention relates to a process for the production of a manifold carbonless form having one or more surfaces coated with capsular chromogenic material. The process comprises providing a plurality of continuous webs, at least one web of the plurality of continuous webs being marked with a pattern and at least one non-aqueous solvent-free coating of the capsular, chromogenic material being applied to at least a portion of at least one continuous web of the plurality of continuous webs. The nonaqueous, solvent-free coating is then set followed by collating of the plurality of continuous webs. The collated, continuous webs are placed in contiguous relationship to one …

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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 September 1, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 1, 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.
FiledApril 28, 1977
GrantedSeptember 1, 1981
Term endedSeptember 1, 1998
Patent numberCA 1107955 A
Classification (IPC)B05D3/06 +2 more

Timeline

Timeline From CIPO dates

1978198119841987199019931996Application filedApril 28, 1977Patent grantedSep 1, 1981Term endedSep 1, 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.