Bandage with pressure responsive indicator
CA 1316057 C · Owner: Simjian, Luther G. · Inventors: Simjian, Luther G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A bandage useful for instance, in medical applications, includes a rupturable sheet or strip having encapsulated fluid (liquid or gas). The sheet or strip is disposed between the body portion to be bandaged and the outer surface of the bandage The sheet or strip ruptures when a predetermined pressure is exceeded thereby releasing, the fluid for indicating that the bandage is applied too tightly. When the fluid is a liquid, such as a dye, the released liquid will stain the bandage. When the fluid is a gaseous substance the release of the, gas will be sensed. When a plurality of strips are used one strip may, contain a liquid and another one a gaseous substance the strips, rupturing at …
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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 April 13, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 13, 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.