Clothing bearing retroreflective appliques
CA 2184272 C · Owner: Minnesota Mining And Manufacturing Company · Inventors: Billingsley, Britton G.; Lightle, Vera L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An article of clothing (10) bearing a retroreflective applique (12) that has a binder layer (14) onto which a retroreflective layer (19) is disposed. The retroreflective layer (19) includes a layer of optical elements (16) and a metal reflective layer (18) and the binder layer, (14) includes a thermoplastic copolymer that includes units which contain carboxyl groups. A retroreflective applique which uses such a, binder layer in conjunction with aluminum-coated or silver-coated optical elements demonstrates very good home laundering durability.
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 March 28, 1995 and granted February 1, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 28, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 28, 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.
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.