IP Library Granted Patent US 6,497,251
Granted Patent Utility Small
US 6,497,251 · Confirmation No. 8919

HYDRAULIC LATCHING SPOOL VALVE

Inventor: Richard R. Watson
Patented Case View Patent ↗
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Code Description Pages PDF
2022-06-08 OATH Oath or Declaration filed 8 View
2012-12-20 OATH Oath or Declaration filed 9 View
2001-08-06 TRNA Transmittal of New Application 2 View
2001-08-06 SPEC Specification 9 View
2001-08-06 CLM Claims 12 View
2001-08-06 ABST Abstract 1 View
2001-08-06 DRW Drawings-only black and white line drawings 3 View
2001-08-06 OATH Oath or Declaration filed 3 View
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Quick Facts
Patent No.
US 6,497,251
App. No.
09/923,379
Filed
2001-08-06
Granted
2002-12-24
Art Unit
3753
PTA
-97 days