Elevator escape structure
CA 1265069 C · Owner: Gomez, Samuel · Inventors: Gomez, Samuel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
F4F/4.162, ELEVATOR ESCAPE STRUCTURE, Abstract of the Disclosure This invention relates to an elevator shaft structure in a building about an elevator to aid escape from the elevator upon a power failure; and it includes a structure defining an elevator shaft for an elevator cab which provides a rear shaft wall with a stairway extending outwardly from the rear wall for travel between the floors and, in the elevator cab, a rear door is provided for escape from the elevator onto the emergency stairway.
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 January 30, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 30, 2007.
- 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.