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US3157992A
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US
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Flow controlling device
Assignee: Kemenczky Establishment
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Filing: 1963-04-16
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Granted: 1964-11-24
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Expires: 1983-04-16
Abstract
No abstract record available.
Inventors
- 👤 Kemenczky Miklos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:33
CPC Classifications
B; B63; B63H; B63H11/00; B63H11/12; B63H11/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3060682A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-24 | 1968-05-25 | 1968-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-24 | 1972-05-25 | 1972-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-24 | 1976-05-25 | 1976-11-24 | $7700.00 | Window Closed / Lapsed |