Patent US2537231A successfully refreshed from Google Patents.
US2537231A
Expired / Lapsed
US
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Nonskid device
Assignee: Individual
•
Filing: 1946-08-13
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Granted: 1951-01-09
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Expires: 1966-08-13
Abstract
No abstract record available.
Inventors
- 👤 Edmund J Necrason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:05
CPC Classifications
B; B60; B60C; B60C27/00; B60C27/06; B60C27/10; B60C27/12; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10279
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US901300A
Cited
GB190710550A
Cited
US901654A
Cited
US1337443A
Cited
US1456729A
Cited
US1563960A
Cited
US2078764A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-08 | 1954-07-10 | 1955-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-08 | 1958-07-10 | 1959-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-08 | 1962-07-10 | 1963-01-09 | $7700.00 | Window Closed / Lapsed |