Disk protective enclosure
CA 2323624 C · Owner: Finest Products Limited · Inventors: Lau, Kwok Din
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A holder (10) for a disk (22) having a central opening (25) and front and back surfaces (23, 24) includes a base (14) having a planar panel (19); and a pedestal (20) projecting forwardly from the base on a pedestal axis (21). The pedestal includes a central button (44) having radially outwardly projecting retainers (38), and axially extending stems (36) that are integrally formed as button segments (44) with corresponding ones of the retainers. A laterally spaced pair of arms (40) connected to each of the stems supports the button portion in cantilevered relation to the base the arms sloping radially , inwardly and axially forwardly from the panel of the base the arms , collectively …
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, 1999 and granted October 29, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 8, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 8, 2021.
- 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.