Canterra Energy Ltd.
Patent Owner
Stats
- 0 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Oct 23, 1990 most recent publication
Details
- 0 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 30 Total Citation Count
- Mar 03, 1982 Earliest Filing
- 4 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
- No Technology to Display
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Recent Publications
- No Recent Publications to Display
Recent Patents
- No Recent Patents to Display
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
4964981 Recovery of elemental sulphur from products containing contaminated elemental sulphur by froth flotationExpiredJan 25, 89Oct 23, 90[B03D]
4952307 Recovery of elemental sulphur from products containing contaminated elemental sulphur by froth flotationExpiredJan 25, 89Aug 28, 90[B03D]
4871447 Recovery of elemental sulphur from products containing contaminated elemental sulphur by froth flotationExpiredFeb 17, 87Oct 03, 89[B03D]
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