US2982310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molded diaphragm of non-woven material
Assignee: Reeves Brothers Inc
•
Filing: 1958-05-27
•
Granted: 1961-05-02
•
Expires: 1978-05-27
Abstract
No abstract record available.
Inventors
- 👤 George C West
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:38
CPC Classifications
F; F16; F16J; F16J3/00; F16J3/02; Y; Y10; Y10S; Y10S141/00; Y10S141/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1515702A
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US1516630A
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US1771749A
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US1790206A
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US2033354A
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US2178953A
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US2483406A
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US2578534A
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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) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |