US2970805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valves having resilient seals
Assignee: EDWARD VALVES Inc
•
Filing: 1958-11-14
•
Granted: 1961-02-07
•
Expires: 1978-11-14
Abstract
No abstract record available.
Inventors
- 👤 Eldert B Pool
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:17
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/06; F16K5/0663; F16K5/0673
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE24102E
Cited
US2606740A
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US2505270A
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US2576300A
Cited
US2547831A
Cited
US2810543A
Cited
US2844353A
Cited
US2837308A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-07 | 1964-08-08 | 1965-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-07 | 1968-08-08 | 1969-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-07 | 1972-08-08 | 1973-02-07 | $7700.00 | Window Closed / Lapsed |