US2923576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure line shut-off valve
Assignee: Individual
•
Filing: 1955-04-04
•
Granted: 1960-02-02
•
Expires: 1975-04-04
Abstract
No abstract record available.
Inventors
- 👤 Homer T Seale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:52
CPC Classifications
B; B60; B60T; B60T15/00; B60T15/02; B60T15/04; B60T15/041; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2544; Y10T137/7722; Y10T137/7781; Y10T137/7784; Y10T137/7785; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/8667; Y10T137/86686
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1485958A
Cited
US1478669A
Cited
US1563143A
Cited
US2238124A
Cited
GB635751A
Cited
US2445544A
Cited
US2638108A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-01 | 1963-08-03 | 1964-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-01 | 1967-08-03 | 1968-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-01 | 1971-08-03 | 1972-02-02 | $7700.00 | Window Closed / Lapsed |