Attain's new spring assembly (ansa)
CA 2221622 A1 · Owner: Ottlyk, Nicholas M. · Inventors: Ottlyk, Nicholas M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Attains' New Spring Assemblies, called "ANSA" for short, are designed to function in all Internal Combustion (I.C.) engines using poppet valves. The said engines may be of the gasoline, or Diesel-type, of the 4-stroke or 2-stroke, variety with valves. ANSA Valve Trains are intended for OHV motors (with pushrods and rockers), or SOHC engines (with rockers only), or DOHC engines with, or without rockers. The number of cylinders, their disposition within an engine as, well as the end-use of a11 said motors are transparent to their application. The older SV (Side Valve) motors with so-called, 'flat-heads', are no longer produced for automotive lines and, are not covered by Attains inovations. …
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 January 29, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 29, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 29, 2020.
- 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.