US2360401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air feed for pressure pumping systems
Assignee: Individual
•
Filing: 1944-05-09
•
Granted: 1944-10-17
•
Expires: 1964-05-09
Abstract
No abstract record available.
Inventors
- 👤 William H Crow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:03
CPC Classifications
F; F04; F04D; F04D13/00; F04D13/16; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2579; Y10T137/2587; Y10T137/2592; Y10T137/2931; Y10T137/3115; Y10T137/3127
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1947-10-17 | 1948-04-17 | 1948-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-10-17 | 1952-04-17 | 1952-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-10-17 | 1956-04-17 | 1956-10-17 | $7700.00 | Window Closed / Lapsed |