Split lock screw fastener assembly and method
CA 2499555 A1 · Owner: Breslin, Mary A. · Inventors: Breslin, Patrick W.; Breslin, Mary A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A self-locking bolt assembly (1) includes a split bolt (2) and a screw set pin (3). The bolt includes a threaded shank (4) an axial bore (6) extending , through the shank the bore (6) including a threaded bore section (6A) a , tapered end section (6C), and a bore midsection (6B) between the threaded bore section and the tapered end section. The screw set pin(3) includes a screw section (1OB) having threads for engaging the threaded bore section (6A) and a pin shaft (10) having a tapered end section (1 OA) for engaging the tapered end section (6C) of the bore (6), the pin shaft (10) having a proximal end attached to the screw section (1OB). The pin shaft (10) is sufficiently long to …
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 2, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 2, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 2, 2025.
- 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.