US2767734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid control valve
Assignee: Productive Inventions Inc
•
Filing: 1952-06-03
•
Granted: 1956-10-23
•
Expires: 1972-06-03
Abstract
No abstract record available.
Inventors
- 👤 John W Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:25
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/04; B60S1/06; B60S1/10; G; G05; G05D; G05D7/00; G05D7/01; G05D7/0106; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7784; Y10T137/7785
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB107058A
Cited
US543448A
Cited
US1380787A
Cited
US1681911A
Cited
US1897155A
Cited
US1990747A
Cited
US2128878A
Cited
US2133575A
Cited
US2165995A
Cited
US2291881A
Cited
US2610063A
Cited
US2608352A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-23 | 1960-04-23 | 1960-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-23 | 1964-04-23 | 1964-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-23 | 1968-04-23 | 1968-10-23 | $7700.00 | Window Closed / Lapsed |