US2991509A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrugated diaphragm manufacture
Assignee: Uniroyal Inc
•
Filing: 1956-03-19
•
Granted: 1961-07-11
•
Expires: 1976-03-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph A Brophy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:58
CPC Classifications
B; B61; B61D; B61D17/00; B61D17/04; B61D17/20; B61D17/22; B29; B29C; B29C53/00; B29C53/22; B29C53/24; B29C53/28; B29K; B29K2021/00; B29L; B29L2016/00; Y; Y10; Y10S; Y10S264/00; Y10S264/52; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1015; Y10T156/1016
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1616063A
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US1971667A
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US2193156A
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US2347101A
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US2446281A
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US2578140A
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US2817468A
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US2785717A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |