Dental saliva ejector
CA 1086999 A · Owner: Mckelvey, Thomas H. · Inventors: Mckelvey, Thomas H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
PATENT APPLICATION, of, THOMAS H. McKELVEY for, DENTAL SALIVA EJECTOR, ABSTRACT OF THE DISCLOSURE A dental saliva ejector in which the ejector tube is equipped with a free-swivelling connector for connection to a suction conduit, the outlet end portion of the ejector tube being removably engaged in the bore of one member of the swivel connector in a resiliently compressed force fit the, swivel connector comprising two members which can be separated for cleaning.
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 October 7, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 7, 1997.
- 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.