Laser measurement system for rapid calibration of machine tools
CA 2270228 A1 · Owner: Huang, Peisen S. · Inventors: Huang, Peisen S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A laser measurement system for rapid calibration of machine tools includes a measurement enhancement device which enables an existing standard single degree of freedom laser interferometry system to simultaneously measure up to four additional degrees of freedom. The device includes a first beamsplitter (56) which splits a laser beam of the existing measurement system such as , return laser beam (58), into a first beam (60) for use by an existing component of the existing interferometry system and a second beam (62) for , use by the measurement enhancement device. The measurement enhancement device also includes a measurement component which simultaneously receives second beam (62) …
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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 November 7, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 7, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 7, 2019.
- 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.