Patent US2631614A successfully refreshed from Google Patents.
US2631614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas stream pulsation dampener
Assignee: Fluor Corp
•
Filing: 1949-02-05
•
Granted: 1953-03-17
•
Expires: 1969-02-05
Abstract
No abstract record available.
Inventors
- 👤 Foster M Stephens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:27
CPC Classifications
F; F04; F04B; F04B39/00; F04B39/0027; F04B39/0055
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2070543A
Cited
US2182945A
Cited
US2501751A
Cited
US2490493A
Cited
US2518832A
Cited
US2501767A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |