Clamping spine for sheets of drawings
CA 1310244 C · Owner: Fletcher, William C. · Inventors: Fletcher, William C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A portable carrier for a sheet of drawings has a backing member and a clamping jaw hingedly connected to the backing member for movement between an open position and a closed position with respect to the backing member. A plurality of mounting pins project from the front face of the backing member and are spaced to correspond with the spacing between the suspension holes of the drawings which are to be mounted on the carrier. A tape dispenser is also provided which can be used in combination with the portable carrier to facilitate the application of a reinforcing tape to a perforated edge of a drawing.
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 November 17, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 17, 2009.
- 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.