Blind fastener with drive nut
CA 2051852 A1 · Owner: Hutchinson, Scott A. · Inventors: Hutchinson, Scott A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a fastener of a type having a core pin including a threaded shank portion an enlarged head at, one end thereof, and a torque tool engaging means on the opposite side of the core pin from the head. The fastener further has an expander means including the head with at least one recess in the outer surface at one end thereof and a tapered nose portion at the other end thereof. The expander means has a bore therethrough to receive the threaded shank portion of the core pin. Also the fastener has sleeve means on the core pin between the nose portion of the expander means and the enlarged head of the core pin. An internally threaded drive nut is threadedly mounted on the …
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 September 19, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 19, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 19, 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.