Severe service compressor system
CA 2107146 A1 · Owner: Baugh, Benton F. · Inventors: Baugh, Benton F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A severe service compressor for the reliable compression of dirty gases using compressors with seals cooled by the hydraulic fluids doing the work of compression and seals isolated from the high temperatures of the compressed gases by piston rings which restrict the flow of compressed gases into the area adjacent to the seals on the compression stroke and allow the venting of the gases adjacent to the seals on the reverse stroke.
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 28, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 28, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 28, 2015.
- 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.