US2493620A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Board leveling mechanism
Assignee: Individual
•
Filing: 1948-01-28
•
Granted: 1950-01-03
•
Expires: 1968-01-28
Abstract
No abstract record available.
Inventors
- 👤 Cusano Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:37
CPC Classifications
A; A63; A63D; A63D15/00; A63F; A63F7/00; A63F7/0005; A63F7/22; A63F7/36; A63F2007/3633
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US252929A
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US932118A
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US1378483A
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US1777686A
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US1845532A
Cited
US1636535A
Cited
US1795624A
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US1976932A
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US2124314A
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US2260716A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-02 | 1953-07-04 | 1954-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-02 | 1957-07-04 | 1958-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-02 | 1961-07-04 | 1962-01-03 | $7700.00 | Window Closed / Lapsed |