US2566949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic grinding control
Assignee: MARCO Co Inc
•
Filing: 1946-10-17
•
Granted: 1951-09-04
•
Expires: 1966-10-17
Abstract
No abstract record available.
Inventors
- 👤 Marco John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:26
CPC Classifications
B; B02; B02C; B02C7/00; B02C7/11; B02C7/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US22616A
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US203127A
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US1035304A
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US1762379A
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US2051716A
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US2204057A
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US2204140A
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US2255071A
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US2262024A
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US2445617A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-03 | 1955-03-05 | 1955-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-03 | 1959-03-05 | 1959-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-03 | 1963-03-05 | 1963-09-04 | $7700.00 | Window Closed / Lapsed |