Roll forming machine
CA 2183272 C · Owner: Matsunaga, Douglas S. · Inventors: Schaeffer, George; Lovinggood, Steve; Matsunaga, Douglas S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A roll forming machine which includes an outboard housing (96) having dual turrets (98-99) each turret carries a pair of rotatable arbors (113-114-115-116) which can carry forming rollers (117-118). The outboard housing is slidable along guide rails between on-line and off-line positions. In the off-line position the turrets may be indexed to bring the second pair of arbors into a working alignment and thus reduce changeover and down time of the roll forming line.
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 February 24, 1995 and granted April 17, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 24, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 24, 2017.
- 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.