US2642914A
Expired / Lapsed
US
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Assignee: Wingfoot Corp
•
Filing: 1951-09-28
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Granted: 1953-06-23
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Expires: 1971-09-28
Abstract
No abstract record available.
Inventors
- 👤 Andrew J Palko
- 👤 Walter E Shively
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:39
CPC Classifications
B; B60; B60C; B60C11/00; B60C11/03; B60C11/11; B60C11/0302; B60C11/0306; B60C11/12; B60C11/1204; B60C2011/1213; Y; Y10; Y10S; Y10S152/00; Y10S152/902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-22 | 1956-12-22 | 1957-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-22 | 1960-12-22 | 1961-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-22 | 1964-12-22 | 1965-06-23 | $7700.00 | Window Closed / Lapsed |