Color-coded numeric or alphabetic filing system
CA 1184091 A · Owner: Cunningham, Walter F. · Inventors: Cunningham, Walter F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is disclosed herein a color-coded filing system for uniquely identifying documents to be filed and retrieved. The document to be filed has sequential filing characters applied along the top and side edges thereof. Marker tabs are provided which are pressure sensitive adhesive-backed and transparent and have a colored peripheral border that defines a two-position transparent aperture. A positively applied filing character is provided in the first position of the tab aperture and the second position of the marker tab is blank. The marker tabs can be applied over the filing characters on said document so that the characters on the document appear in the second position of said aperture …
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 March 19, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 19, 2002.
- 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.