US3080271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making shaped fiber reinforced rubber diaphragms
Assignee: EIDP Inc
•
Filing: 1959-10-23
•
Granted: 1963-03-05
•
Expires: 1979-10-23
Abstract
No abstract record available.
Inventors
- 👤 Jr Henry E Quehl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:26
CPC Classifications
C; C25; C25B; C25B13/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US296490A
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US1675244A
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US1844434A
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US2006626A
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GB572962A
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US2526125A
Cited
GB674577A
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US2810646A
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US2930106A
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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) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |