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Expired Canadian patentCanada

Linear electrical energy generator

CA 2190393 C · Owner: Rigazzi, Pier Andrea · Inventors: Rigazzi, Pier Andrea

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

In an autogenous generator (1) in which electrical energy is generated by a linkage between fixed windings (2) and permanent magnets which move integrally on the alternating motion of one or more pistons of a two-stroke internal combustion engine the cylinders, (5) coupled to the pistons (4) have a conical precombustion chamber (10) opening towards the cylinders (5) the engine runs with variable, compression strokes and the magnets (3) and windings (2) are designed such that the ratio between the quantities of mechanical energy used to generate electrical energy for two different strokes of the magnets (3) is equal to the ratio between the two compression ratios obtained in the cylinders …

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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

  • Filed May 31, 1995 and granted June 29, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 31, 2015.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 31, 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.
FiledMay 31, 1995
GrantedJune 29, 1999
Term endedMay 31, 2015
Patent numberCA 2190393 C
Classification (IPC)F02B71/04 +2 more

Timeline

Timeline From CIPO dates

1996199820002002200420062008201020122014Application filedMay 31, 1995Patent grantedJune 29, 1999Term endedMay 31, 2015

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.