Patent US2843172A successfully refreshed from Google Patents.
US2843172A
Expired / Lapsed
US
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Stone rejecting tire tread
Assignee: Uniroyal Inc
•
Filing: 1955-08-15
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Granted: 1958-07-15
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Expires: 1975-08-15
Abstract
No abstract record available.
Inventors
- 👤 Verne H Berry
- 👤 Arthur W Grant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:40
CPC Classifications
B; B60; B60C; B60C11/00; B60C11/03; B60C11/04; B60C11/042; B60C11/045; B60C11/047; B60C11/13; B60C11/1307; B60C11/1315; B60C11/1323; Y; Y10; Y10S; Y10S152/00; Y10S152/01; Y10S152/90; Y10S152/901
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) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |