Canadian application, no grantCanada
Pelletized dead leaves
CA 2034446 A1 · Owner: Chun, Bongsoo · Inventors: Chun, Bongsoo
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In North Temperate Zone there are abundant of dead leaves due to seasonal changes. Usually, these leaves are collected and disposed of as a waste material. In this invention the leaves, are turned into a useful and manageable form by pelletizing them.
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 January 17, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 17, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 17, 2013.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 17, 1991
GrantedNo grant recorded
Term endedJanuary 17, 2011
Patent numberCA 2034446 A1
Classification (IPC)C10L5/44
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.