US2888036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Butterfly valve with sealing ring movable mounted for accommodation to seat
Assignee: JOHANNES ERHARD FA
•
Filing: 1954-10-26
•
Granted: 1959-05-26
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Expires: 1974-10-26
Abstract
No abstract record available.
Inventors
- 👤 Reppert Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:17
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/16; F16K1/18; F16K1/22; F16K1/226; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7898; Y10T137/7901; Y10T137/7903
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1744798A
Cited
US1771114A
Cited
US2352047A
Cited
US2356815A
Cited
US2556904A
Cited
US2669419A
Cited
US2711188A
Cited
US2791396A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-25 | 1962-11-24 | 1963-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-25 | 1966-11-24 | 1967-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-25 | 1970-11-24 | 1971-05-26 | $7700.00 | Window Closed / Lapsed |