US2501751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulsation and flow control system for gas lines
Assignee: Fluor Corp
•
Filing: 1946-03-15
•
Granted: 1950-03-28
•
Expires: 1966-03-15
Abstract
No abstract record available.
Inventors
- 👤 Blair G Aldridge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:05
CPC Classifications
F; F04; F04B; F04B39/00; F04B39/0027; F04B39/0055; F16; F16L; F16L55/00; F16L55/04; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/85978; Y10T137/86035; Y10T137/86043
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1021254A
Cited
US1459797A
Cited
US1739039A
Cited
US1860569A
Cited
US2405100A
Cited
US2404589A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-27 | 1953-09-26 | 1954-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-27 | 1957-09-26 | 1958-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-27 | 1961-09-26 | 1962-03-28 | $7700.00 | Window Closed / Lapsed |