Method for fabricating an optical device using purified adhesives in the optical path
CA 2357773 A1 · Owner: Derosa, Michael E. · Inventors: Bryhan, Marie D.; Derosa, Michael E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for fabricating an optical device that uses a robust purified adhesive as a bonding agent is disclosed. Impurity particles greater than or equal to 0.1 microns are removed from liquid precursor materials prior to polymerization or cross-linking. The impurity particles are separated from the precursor by applying a high gravitational centrifugal force. The purified adhesive is used to bond together optical components disposed in the optical path of the device. The purified adhesive resists damage from high-powered lasers because impurity particles that would otherwise absorb and scatter laser light are removed from the adhesive.
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 December 14, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 14, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 14, 2021.
- 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.