US2300815A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve for pumps
Assignee: Individual
•
Filing: 1930-08-04
•
Granted: 1942-11-03
•
Expires: 1950-08-04
Abstract
No abstract record available.
Inventors
- 👤 Dudley C Sharp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:35
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/02; F16K15/06; F04; F04B; F04B53/00; F04B53/10; F04B53/102; F04B53/1022; F04B53/1025; Y; Y10; Y10S; Y10S137/00; Y10S137/904; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7908; Y10T137/7909; Y10T137/7913; Y10T137/7915; Y10T137/7916
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1945-11-02 | 1946-05-04 | 1946-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-11-02 | 1950-05-04 | 1950-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-11-02 | 1954-05-04 | 1954-11-03 | $7700.00 | Window Closed / Lapsed |