Seed planter attachment
CA 1268080 C · Owner: Anderson, Steven · Inventors: Anderson, Steven
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved seed planter for a chisel plow includes a boot connected by a pair of leaf spring rods to the vertical shank of the plow. A bracket for connecting the spring rods to the boot and for gauge or press wheel attachments is detachably coupled to the rear of the boot by a quick-releasing pin that engages apertures in tabs affixed to the boot. The tabs mate with slots on the bracket. Thus the depth, of the boot may be regulated independently of the spring rod bias.
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 April 24, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 24, 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.