Occlusive wound care dressing
CA 1317175 C · Owner: Meyer, Ralph A. · Inventors: Meyer, Ralph A.; Habib, Wagdi W.; Stupar, James A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An occlusive dressing for care of skin wounds which includes a skin contacting barrier layer and an overlying backing layer adhesively united thereto the backing, layer being formed from a thin sheet which is stretchable to the extent that a 50% elongation without rupture is produced by a tensioning stress of not over 1.5 pounds per inch of width, the barrier layer being formed from a composition including an elastomeric phase integrated by a cross-linked polymer network and a particulate water-absorbing hydrocolloid phase dispersed in said cross-linked elastomeric phase.
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 4, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 4, 2010.
- 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.