US2070525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for making inner tubes
Assignee: Wingfoot Corp
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Filing: 1934-10-26
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Granted: 1937-02-09
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Expires: 1954-10-26
Abstract
No abstract record available.
Inventors
- 👤 Boyd C Eberhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:51
CPC Classifications
B; B29; B29D; B29D23/00; B29D23/24; B29C; B29C65/00; B29C65/78; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/13; B29C66/131; B29C66/50; B29C66/51; B29C66/53; B29C66/532; B29C66/5324; B29C66/53241; B29C66/70; B29C66/71; B29C66/20; B29C66/24; B29C66/242; B29C66/2422; B29C66/24221; B29K; B29K2021/00; B29L; B29L2023/00; B29L2023/24; B29L2023/245; Y; Y10; Y10S; Y10S152/00; Y10S152/07; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1056; Y10T156/17; Y10T156/1702; Y10T156/1744; Y10T156/1749
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1940-02-09 | 1940-08-10 | 1941-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-02-09 | 1944-08-10 | 1945-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-02-09 | 1948-08-10 | 1949-02-09 | $7700.00 | Window Closed / Lapsed |