US1977281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inner tube and method of manufacture
Assignee: Aerojet Rocketdyne Holdings Inc
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Filing: 1932-09-09
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Granted: 1934-10-16
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Expires: 1952-09-09
Abstract
No abstract record available.
Inventors
- 👤 Arthur S Knowlton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:45
CPC Classifications
B; B60; B60C; B60C5/00; B60C5/02; B60C5/04; B29; B29D; B29D30/00; B29D30/06; B29D30/0681; B29D30/0685; B29D2030/0686; B29D2030/0691; B29K; B29K2021/00; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495; Y10T152/10666; Y10T152/10675; Y10T152/10702; Y10T152/10711
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) | 1937-10-15 | 1938-04-16 | 1938-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-10-15 | 1942-04-16 | 1942-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-10-15 | 1946-04-16 | 1946-10-16 | $7700.00 | Window Closed / Lapsed |