Unitary adhesive bandage
CA 1204641 A · Owner: Johnson & Johnson Products, Inc. · Inventors: Lauritzen, Nels J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Adhesive bandages comprising a pad area and adjacent adhesive-coated areas are prepared from a single sheet of heat-fusible bandage material, preferably a nonwoven batt material, by overlapping the center portion of the material in a Z-fold to form a triple thickness pad area and, heat calendaring the material adjacent the desired pad area to provide a surface suitable for coating with adhesive. The integrity of the pad is preserved by heat fusing the material along the folded edges of the pad. J&J-1089
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 May 20, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 20, 2003.
- 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.