Patent US3517720A successfully refreshed from Google Patents.
US3517720A
Expired / Lapsed
US
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Pneumatic tire
Assignee: Armstrong Rubber Co
•
Filing: 1969-04-29
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Granted: 1970-06-30
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Expires: 1989-04-29
Abstract
No abstract record available.
Inventors
- 👤 Ellsworth R Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:56
CPC Classifications
B; B60; B60C; B60C11/00; B60C11/0083; B29; B29D; B29D30/00; B60C11/01; B60C3/00; B60C3/04; 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)
NL6509760A
Cited
US3410329A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-29 | 1973-12-29 | 1974-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-29 | 1977-12-29 | 1978-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-29 | 1981-12-29 | 1982-06-30 | $7700.00 | Window Closed / Lapsed |