Camera crane
CA 2409169 A1 · Owner: Chapman, Leonard T. · Inventors: Chapman, Leonard T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A camera crane (40) has a boom arm (44) pivotably connected to a post assembly (42). A track section (60) is pivotably attached to the front end of the boom arm, and is leveled via leveling rods (48). A camera frame (68) carrying a camera (275) is linearly moveable along the track section. Pivot joints (46 56, 64) provide for adjustable drag on pivoting movement without backlash or , slip/stick movement. A remote control accessory (800) is attached to the crane to provide remote movement of the camera platform using joystick controllers (801, 920).
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 May 24, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 24, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 24, 2023.
- 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.