US2990867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic tire with separate tread rings
Assignee: Pirelli and C SpA
•
Filing: 1960-07-11
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Granted: 1961-07-04
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Expires: 1980-07-11
Abstract
No abstract record available.
Inventors
- 👤 Barassi Carlo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:52
CPC Classifications
B; B60; B60C; B60C27/00; B60C27/06; B60C27/062; B60C27/065; B60C11/00; B60C11/02; B60C11/14; B60C11/16; B60C11/1643; B60C9/00; B60C9/18; B60C9/20; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495; Y10T152/10765
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) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |