US2959050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Needle valve test instrument
Assignee: SHERIDAN PARK Manufacturing Co Inc
•
Filing: 1959-04-17
•
Granted: 1960-11-08
•
Expires: 1979-04-17
Abstract
No abstract record available.
Inventors
- 👤 Charles J Franch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:49
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02; G01M3/26; G01M3/28; G01M3/2876
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1464817A
Cited
US1703824A
Cited
GB391218A
Cited
US2330236A
Cited
US2449053A
Cited
US2625033A
Cited
US2760367A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-08 | 1964-05-09 | 1964-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-08 | 1968-05-09 | 1968-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-08 | 1972-05-09 | 1972-11-08 | $7700.00 | Window Closed / Lapsed |