US2695694A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diaphragm mechanism for pump clutches
Assignee: EMMY MARGARET SEINFELD
•
Filing: 1951-11-03
•
Granted: 1954-11-30
•
Expires: 1971-11-03
Abstract
No abstract record available.
Inventors
- 👤 Seinfeld Emmy Margaret
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:55
CPC Classifications
F; F03; F03C; F03C7/00; F04; F04C; F04C2/00; F04C2/08; F04C2/10; F04C2/107; F04C2/1071; F04C2/1076; F04C5/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USRE21374E
Cited
US2088042A
Cited
US1914600A
Cited
US2028407A
Cited
DE637586C
Cited
US2188702A
Cited
US2311580A
Cited
US2621605A
Cited
US2505136A
Cited
US2512764A
Cited
US2527673A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-29 | 1958-05-31 | 1958-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-29 | 1962-05-31 | 1962-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-29 | 1966-05-31 | 1966-11-30 | $7700.00 | Window Closed / Lapsed |