Work holder support apparatus
CA 2088685 C · Owner: Blatt, John A. · Inventors: Blatt, John A.; Tomlin, David C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A work holder support apparatus includes an elongate support member (10) having an undercut longitudinal slot (12). A base plate (18) at one side of the support member carries a spherical ball (16) and a clamp bolt (28) seated in a recessed bore (24) in the ball which passes through the base plate and slot to be threadably received in a first clamp plate (32) at the opposite side of the support member. An elongate work holder mounting member (64) and a second clamp plate (70a) cooperatively define a ball receiving socket at one end of the mounting member enabling the mounting member to be clamped at any of a wide range of rotative adjustments relative to the ball. An opening (72a 68a) into …
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
- Filed August 1, 1991 and granted December 29, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 1, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 1, 2013.
- 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.