US2633288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control valve
Assignee: Ingersoll Rand Co
•
Filing: 1947-11-19
•
Granted: 1953-03-31
•
Expires: 1967-11-19
Abstract
No abstract record available.
Inventors
- 👤 Naab Julius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:59
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US231214A
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US1483044A
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US948471A
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US1603495A
Cited
US1797688A
Cited
US2272815A
Cited
US2371345A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-30 | 1956-09-29 | 1957-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-30 | 1960-09-29 | 1961-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-30 | 1964-09-29 | 1965-03-31 | $7700.00 | Window Closed / Lapsed |