Portable round bale wrapper
CA 2185842 C · Owner: Sampson, Roy E. · Inventors: Sampson, Roy E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A portable round bale wrapping apparatus which wraps large upright cylindrical straw bales with protective plastic film for storage on the field. One person can operate the wheeled bale wrapper on uneven ground. A light-weight tubular frame with a pulley system moves the wrapper roll up and down. The rotation of wrapping can be reversed by moving the pulley system to an opposite side . The wrapping apparatus can be adjusted in height and length to accommodate the variance in size of hay or straw bale. The bale wrapping apparatus can be dismantled, folded into a light-weight package and carried to the next field or stored.
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 September 18, 1996 and granted November 30, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 18, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 18, 2018.
- 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.