EDWARDS DEVELOPMENT CORP., A CORP OF NV.
Patent Owner
Stats
- 0 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Apr 03, 1990 most recent publication
Details
- 0 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 730 Total Citation Count
- Sep 11, 1978 Earliest Filing
- 3 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
- No Technology to Display
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Recent Publications
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Recent Patents
- No Recent Patents to Display
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
4912971 System for recovery of petroleum from petroleum impregnated mediaExpiredJan 10, 89Apr 03, 90[E21B]
4817711 System for recovery of petroleum from petroleum impregnated mediaExpiredMay 27, 87Apr 04, 89[E21B]
4193448 Apparatus for recovery of petroleum from petroleum impregnated mediaExpiredSep 11, 78Mar 18, 80[E21B]
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