US3488030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical motor operated valve
Assignee: Halliburton Co
•
Filing: 1966-08-17
•
Granted: 1970-01-06
•
Expires: 1986-08-17
Abstract
No abstract record available.
Inventors
- 👤 Jack R Hulme
- 👤 Carl W Zimmerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:06
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/04; F16K31/046
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1294491A
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US1519675A
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US1642412A
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US2059151A
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US2298621A
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US2470470A
Cited
US2870387A
Cited
US2924105A
Cited
US2966170A
Cited
US3158163A
Cited
US3219046A
Cited
US3217192A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-05 | 1973-07-07 | 1974-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-05 | 1977-07-07 | 1978-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-05 | 1981-07-07 | 1982-01-06 | $7700.00 | Window Closed / Lapsed |