US2441708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump for corrosive fluids
Assignee: CHEMICAL DEVELOPMENTS Corp
•
Filing: 1944-02-17
•
Granted: 1948-05-18
•
Expires: 1964-02-17
Abstract
No abstract record available.
Inventors
- 👤 Enrique L Luaces
- 👤 Melvin A Crosby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:57
CPC Classifications
F; F04; F04D; F04D7/00; F04D7/02; F04D7/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US879484A
Cited
US1086063A
Cited
US1558630A
Cited
US1759074A
Cited
US2107260A
Cited
US2265448A
Cited
US2347751A
Cited
US2332150A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-05-18 | 1951-11-17 | 1952-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-05-18 | 1955-11-17 | 1956-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-05-18 | 1959-11-17 | 1960-05-18 | $7700.00 | Window Closed / Lapsed |