US2925955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve locking device
Assignee: Individual
•
Filing: 1955-12-05
•
Granted: 1960-02-23
•
Expires: 1975-12-05
Abstract
No abstract record available.
Inventors
- 👤 Oren H Carroll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:46
CPC Classifications
F; F04; F04B; F04B39/00; F04B39/0005; F04B39/0016; F16; F16K; F16K1/00; F16K1/32; F16K1/50; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/49922
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US481850A
Cited
US1511649A
Cited
US2078347A
Cited
US2142712A
Cited
US2192378A
Cited
US2619392A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-22 | 1963-08-24 | 1964-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-22 | 1967-08-24 | 1968-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-22 | 1971-08-24 | 1972-02-23 | $7700.00 | Window Closed / Lapsed |