Adhesive formulation
CA 1113636 A · Owner: American Can Company · Inventors: Wiesman, Dale C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An adhesive formulation has a desirable balance of high initial tack, good dry strength, good release and low tack upon, ultimate exposure. It is particularly well suited for securing coupons to carbon blanks. The formulation is butyl latex-based and includes a paraffin wax and a lower polyolefin.
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 December 1, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 1, 1998.
- 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.