Method and apparatus for improving laser hole resolution
CA 2447438 A1 · Owner: Preco Laser Systems, Llc · Inventors: Lawson, William E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A high resolution, high speed laser drilling system (30) for operating on an advancing product operates to advances the product in a predetermined product advancement path at a product advancement speed. A laser-generating source (12) provides a pulsed laser beam (14) having a laser-on time and a laser-off time. The laser beam is reflected to direct a focal point of the laser beam onto the advancing product (18). The focal point of the laser beam (14) is moved in a direction (36) of the product advancement path during the laser-on time and is moved in a direction opposite to the direction of the product advancement path during the laser-off time. The system (30) is therefore able …
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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 16, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 16, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 16, 2024.
- 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.