Device for transporting loads between various elevations
CA 1287320 C · Owner: Mccoy, Leon A. · Inventors: Mccoy, Leon A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention is an improved device for transporting loads between various elevations. Such loads may be handicapped persons in wheelchairs, wheeled truck loads of freight or materials, wheeled people carriers, or other similar loads that require transport from one elevation to another either, ascending or descending. The improved device serves a double mission as a regular stairway facility for ambulatory persons and as a ramp-type facility for wheeled vehicles carrying a person, or persons, or a load of freight or materials and, other such loads as may require movement from one elevation to another elevation. The improved device for transporting loads between various elevations consists …
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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 August 6, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 6, 2008.
- 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.