Locking fastener
CA 1302131 C · Owner: Masco Industries, Inc. · Inventors: Manoogian, George
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A vibration resistant threaded locking fastener which includes three zones of threads which extend along the length of the male threaded fastener. The first and third zones have standard thread forms for ease of assembly with the mating part and to meet the overall thread length specification for the fastener. The intermediate zone consists of a plurality of consecutive thread pitches with the crest of the threads deformed and flattened. The percentage of deformation is determined by the prevailing torque requirements of the fastener.
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 June 2, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 2, 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.