Patent US2815520A successfully refreshed from Google Patents.
US2815520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tire tread stock buffing apparatus
Assignee: Goodrich Corp
•
Filing: 1954-09-28
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Granted: 1957-12-10
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Expires: 1974-09-28
Abstract
No abstract record available.
Inventors
- 👤 George H Schanz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:26
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1463801A
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US1521582A
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US1588342A
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US1612990A
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US2095697A
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US2220982A
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US2371948A
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US2453339A
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US2537675A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-09 | 1961-06-10 | 1961-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-09 | 1965-06-10 | 1965-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-09 | 1969-06-10 | 1969-12-10 | $7700.00 | Window Closed / Lapsed |