Chain anchor
CA 1069278 A · Owner: Pierce, Harless · Inventors: Pierce, Harless
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A chain anchor which provides for manual quick engagement of a chain with a fixed anchor member, and manual quick disengagement of the chain from said anchor member both readily, conveniently, and without the use of tools or engagement or release of mechanically secured parts; the structural configuration of such chain-engaging anchor member in the form of a block having a chain link receiving throat together with, an associated but spaced-apart eye-type guard through which, the chain extends precluding accidental escape of the chain from the throated anchor member block yet without hindering such manual quick engagement and manual quick disengagement of the chain.
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 January 8, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 8, 1997.
- 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.