Patent US2273976A successfully refreshed from Google Patents.
US2273976A
Expired / Lapsed
US
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Vulcanized rubber joint
Assignee: Individual
•
Filing: 1939-08-12
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Granted: 1942-02-24
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Expires: 1959-08-12
Abstract
No abstract record available.
Inventors
- 👤 Byron V Mitchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:42
CPC Classifications
B; B29; B29D; B29D35/00; B29D35/06; B29D35/061; B29D35/062; A; A43; A43B; A43B13/00; A43B13/28; A43B13/32; B29D35/065; B29D35/067; B29K; B29K2021/00
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) | 1945-02-23 | 1945-08-25 | 1946-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-02-23 | 1949-08-25 | 1950-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-02-23 | 1953-08-25 | 1954-02-24 | $7700.00 | Window Closed / Lapsed |