US2840119A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pumping assembly
Assignee: Symington Wayne Corp
•
Filing: 1956-07-25
•
Granted: 1958-06-24
•
Expires: 1976-07-25
Abstract
No abstract record available.
Inventors
- 👤 Gavin William Wesley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:35
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/60; F04D29/605; F04D29/606; Y; Y10; Y10S; Y10S415/00; Y10S415/901; Y10T; Y10T137/00; Y10T137/2713; Y10T137/2842; Y10T137/2856
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2352958A
Cited
US2435470A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |