US3026082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control valve
Assignee: WEST BASE Co
•
Filing: 1959-09-29
•
Granted: 1962-03-20
•
Expires: 1979-09-29
Abstract
No abstract record available.
Inventors
- 👤 Henry J Essig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:29
CPC Classifications
F; F16; F16K; F16K41/00; F16K41/10; F16K7/00; F16K7/02; F16K7/04; F16K7/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US202982A
Cited
US487671A
Cited
CH63709A
Cited
CH68608A
Cited
US1255389A
Cited
US1327156A
Cited
FR640304A
Cited
US2230515A
Cited
US2457320A
Cited
US2642747A
Cited
US2956866A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-19 | 1965-09-18 | 1966-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-19 | 1969-09-18 | 1970-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-19 | 1973-09-18 | 1974-03-20 | $7700.00 | Window Closed / Lapsed |