Retro-reflective multiple-x optical scanning system
CA 1057097 A · Owner: Litton Business Systems · Inventors: Wu, Paul S.; Stroll, Michael R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Optical scanning apparatus for scanning and sensing information contained on a label-bearing article includes a light source, a rotatable member having a reflective surface optical means for directing light from the source to the reflective surface and optical means for directing light reflected from the reflective surface to form a scanning pattern on a predetermined plane; the scanning pattern being comprised of a plurality of segments together forming di least one pair of overlapping X-shaped traces.
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
- Granted June 26, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 26, 1996.
- 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.