IP Library › Granted Patent US 6,558,131
Granted Patent Utility
US 6,558,131 · Confirmation No. 7890

LIQUID RING PUMPS WITH AUTOMATIC CONTROL OF SEAL LIQUID INJECTION

Inventor: David H. Nash JR.
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2008-04-18 PA.. Power of Attorney 1 View
2008-04-18 N417 Electronic Filing System Acknowledgment Receipt 2 View
2001-06-29 TRNA Transmittal of New Application 4 View
2001-06-29 ADS Application Data Sheet 1 View
2001-06-29 SPEC Specification 8 View
2001-06-29 CLM Claims 5 View
2001-06-29 ABST Abstract 1 View
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Quick Facts
Patent No.
US 6,558,131
App. No.
09/896,628
Filed
2001-06-29
Granted
2003-05-06
Examiner
LIU, HAN L
Art Unit
3746
PTA
0 days