Concrete anchor and embed
CA 1182312 A · Owner: Richmond Screw Anchor Co. Inc. · Inventors: Lancelot, Harry B. Iii
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a fastening assembly for use in a concrete structure in, combination with, and under participation of an apertured metal plate, com-, prising: an embed for anchoring in concrete having an elongated stem made of, steel further having a receiver element extending from the stem at one end thereof, and having a threaded bore not extending into the stem. The receiver further has a cylindrical portion of a larger outer diameter than the stem but, loss than twice the diameter of the latter there being a transition from the, cylindrical portion to the stem the threaded portion of the bore being limited to the cylindrical portion of the receiver. The transition is shorter than the …
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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 February 12, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 12, 2002.
- 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.