High pressure liquid chromatography system
CA 1077739 A · Owner: Varian Associates · Inventors: Munk, Miner N.; Achener, Pierre Y.; Judah, Kenneth C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Of, PIERRE Y. ACHENER DETLEF R. BOEHME, KENNETH C. JUDAH and MINER N. MUNK HIGH PRESSURE LIQUID CHROMATOGRAPHY SYSTEM Abstract of the Disclosure, A high pressure liquid chromatography system including a reservoir for a liquid mobile phase an LC column, and detector, a high pressure reciprocating pump for enabling flow from said reservoir through the column and a positively, actuated inlet valve controlling flow from the reservoir to the pump chamber. The pump is driven by motor means such as, a stepping motor, directly coupled thereto; and the inlet valve is actuated by the power train of the motor and pump e.g. by, an eccentric carried by the pump crank shaft The pump, piston is similarly …
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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 May 20, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 20, 1997.
- 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.