Details
- Application number :
- 47340
- Application type :
- Standard
- Application status :
- CEASED
- Under opposition :
- No
- Proceeding type :
-
- Invention title :
- Downhole surge valve for earth boring apparatus
- Inventor :
- Lee, Douglas W.
- Agent name :
- WATERMARK PATENT AND TRADE MARKS ATTORNEYS
- Address for service :
- Level 2 302 Burwood Road HAWTHORN VIC 3122
- Filing date :
- 29 December 1989
- Associated companies :
-
- Applicant name :
- Gas Research Institute
- Applicant address :
- 8600 West Bryn Mawr Avenue Chicago Illinois 60631 United States of America
- Old name :
-
- Original Source :
- Go