Thermal printing apparatus having variable speed printing
CA 2109552 C · Owner: Porter, Lorraine T. · Inventors: Parks, Charles G. Jr.; Durst, William B.; Porter, Lorraine T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A thermal printing postage meter comprising a base supporting a registration wall, a print deck. The registration wall supports a detachable mounted thermal ribbon cassette and a thermal print head. The thermal print head is mounted to the registration wall to extend over the deck to define a print station. A platen drive assembly is mounted to the base for biasing an envelope against the thermal print head and causing the envelope to traverse the thermal print head during a print cycle of the thermal meter under the influence of a drive motor responsive to a micro controller. The micro controller has a plurality of switches mounted to the registration wall of the postage meter. The …
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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
- Filed November 19, 1993 and granted January 5, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 19, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 19, 2015.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.