US2867228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emergency shut-off valve
Assignee: Buckeye Iron and Brass Works
•
Filing: 1956-06-15
•
Granted: 1959-01-06
•
Expires: 1976-06-15
Abstract
No abstract record available.
Inventors
- 👤 Frederick F Rike
- 👤 Richard V Klikunas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:49
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/36; F16K17/38; F16K17/383; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1632; Y10T137/1639; Y10T137/1654; Y10T137/1797; Y10T137/1819; Y10T137/1834; Y10T137/8593; Y10T137/85978; Y10T137/86131; Y10T137/86163
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US450588A
Cited
US1164436A
Cited
US1712498A
Cited
US1924356A
Cited
US2080485A
Cited
US2031630A
Cited
US2630818A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-05 | 1962-07-07 | 1963-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-05 | 1966-07-07 | 1967-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-05 | 1970-07-07 | 1971-01-06 | $7700.00 | Window Closed / Lapsed |