Stapleless stapler
CA 1317697 C · Owner: Kastner, Arnold · Inventors: Kastner, Arnold
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a stapleless paper fastening apparatus comprising: a base; a housing mounted on the base; a tubular member mounted on the housing the tubular member, having an inwardly extending annular flange at a bottom end the, flange defining a central aperture; a shaft in the tubular member, coaxial therewith and slidable axially through the central aperture into the housing; a handle reciprocally mounted on the tubular member for movement towards and away from the housing, the handling including an outer annular member slidable on the outside of the tubular member, and also having an inner annular member slidable on the inside of the tubular member; a spring …
Read the whole patent
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 May 18, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 18, 2010.
- 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.