Apparatus for cleaning the rim of a rounded object
CA 2038944 A1 · Owner: Croft, Geoffrey G. · Inventors: Croft, Geoffrey G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Title: Apparatus for cleaning the rim of a rounded object. An apparatus (10) for cleaning the rim of a rounded object (11) comprising means (16,17,19) to support the object (11) a cleaning tool (30) movable into, engagement with the rim of the object (11) and means (21,22) to cause relative rotation between the rounded object (11) and the cleaning tool (30) the support means comprising a pair of rollers (16,17) one (17) being mounted generally above the other (16), and a third roller (19) carried by a movable arm (15) which is movable from a first position (A) in which the object (I l) is out of engagement with the pair of rollers (16,17) to a second position (B), when the object (11) is …
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
- Filed August 8, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 8, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 8, 2012.
- 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.