US2607321A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic control mechanism
Assignee: ROME GRADER Corp
•
Filing: 1946-08-19
•
Granted: 1952-08-19
•
Expires: 1966-08-19
Abstract
No abstract record available.
Inventors
- 👤 Anthony L Lado
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:49
CPC Classifications
F; F15; F15B; F15B17/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US160327A
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US591768A
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US689186A
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US863405A
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US2038272A
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US2140037A
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US2221150A
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US2363179A
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US2374545A
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US2380575A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-19 | 1956-02-18 | 1956-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-19 | 1960-02-18 | 1960-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-19 | 1964-02-18 | 1964-08-19 | $7700.00 | Window Closed / Lapsed |