US2900995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jacketed valve
Assignee: Rockwell Manufacturing Co
•
Filing: 1953-04-20
•
Granted: 1959-08-25
•
Expires: 1973-04-20
Abstract
No abstract record available.
Inventors
- 👤 John L Dickerson
- 👤 Robert H Herring
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:39
CPC Classifications
F; F16; F16K; F16K27/00; F16K27/06; F16K27/062; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4358; Y10T137/4393; Y10T137/44; Y10T137/4414; Y10T137/6416; Y10T137/6579
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US935955A
Cited
GB115572A
Cited
US1461520A
Cited
US1535212A
Cited
US1731016A
Cited
US1651207A
Cited
US2073481A
Cited
US2446196A
Cited
US2664098A
Cited
US2682701A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-24 | 1963-02-23 | 1963-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-24 | 1967-02-23 | 1967-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-24 | 1971-02-23 | 1971-08-25 | $7700.00 | Window Closed / Lapsed |