US3511470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Needle valve
Assignee: BECKETT HARCUM CO
•
Filing: 1968-02-12
•
Granted: 1970-05-12
•
Expires: 1988-02-12
Abstract
No abstract record available.
Inventors
- 👤 Robin K Beckett
- 👤 William N Beckett
- 👤 Allen J Moffat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:12
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/32; F16K1/52; F16K1/54; Y; Y10; Y10T; Y10T137/00; Y10T137/7504; Y10T137/7668
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US665083A
Cited
US1619937A
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US2516825A
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US2692750A
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US2994343A
Cited
US2980392A
Cited
US3071344A
Cited
US3033323A
Cited
US3059894A
Cited
US3187775A
Cited
US3233863A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |