US2904876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaft end mounting for sealing and loop forming a pump diaphragm
Assignee: ACF Industries Inc
•
Filing: 1954-05-12
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Granted: 1959-09-22
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Expires: 1974-05-12
Abstract
No abstract record available.
Inventors
- 👤 James L Edelen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:14
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/0009; F04B43/0054; F02; F02M; F02M59/00; F02M59/12; F02M59/14; F02M2700/00; F02M2700/13; F02M2700/1317; F02M2700/1323; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/49236; Y10T29/49826; Y10T29/49908; Y10T29/49925; Y10T29/49934
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1847457A
Cited
FR708743A
Cited
US2036452A
Cited
US2209181A
Cited
US2537241A
Cited
US2564372A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-21 | 1963-03-23 | 1963-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-21 | 1967-03-23 | 1967-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-21 | 1971-03-23 | 1971-09-22 | $7700.00 | Window Closed / Lapsed |