Patent US3039733A successfully refreshed from Google Patents.
US3039733A
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Fluid flow control valve
Assignee: Montedison SpA
•
Filing: 1959-12-28
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Granted: 1962-06-19
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Expires: 1979-12-28
Abstract
No abstract record available.
Inventors
- 👤 Mattioli Ennio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:31
CPC Classifications
F; F16; F16K; F16K7/00; F16K7/02; F16K7/04; F16K7/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2291912A
Cited
DE758037C
Cited
US2467150A
Cited
US2706612A
Cited
US2904063A
Cited
US2994336A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-18 | 1965-12-18 | 1966-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-18 | 1969-12-18 | 1970-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-18 | 1973-12-18 | 1974-06-19 | $7700.00 | Window Closed / Lapsed |