US2479477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Board leveling mechanism
Assignee: Individual
•
Filing: 1947-12-11
•
Granted: 1949-08-16
•
Expires: 1967-12-11
Abstract
No abstract record available.
Inventors
- 👤 Cusano Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:24
CPC Classifications
A; A63; A63D; A63D1/00; A63D1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US359542A
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US540038A
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US875775A
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US932118A
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US1378483A
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US1737621A
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US1795624A
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US1818679A
Cited
US2102086A
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GB505866A
Cited
US2124314A
Cited
US2449850A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-15 | 1953-02-14 | 1953-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-15 | 1957-02-14 | 1957-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-15 | 1961-02-14 | 1961-08-16 | $7700.00 | Window Closed / Lapsed |