US2846181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic diaphragm valve
Assignee: International Motors LLC
•
Filing: 1955-06-03
•
Granted: 1958-08-05
•
Expires: 1975-06-03
Abstract
No abstract record available.
Inventors
- 👤 John R Orelind
- 👤 Sr Vinson R Simpson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:40
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/14; F16K15/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2512694A
Cited
GB366253A
Cited
FR728628A
Cited
US2030121A
Cited
US2378613A
Cited
US2700980A
Cited
US2738948A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-04 | 1962-02-03 | 1962-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-04 | 1966-02-03 | 1966-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-04 | 1970-02-03 | 1970-08-05 | $7700.00 | Window Closed / Lapsed |