US2603312A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for withdrawing oil from
Assignee: —
•
Filing: —
•
Granted: 1952-07-15
•
Expires: 1969-07-15
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:57
CPC Classifications
F; F01; F01M; F01M11/00; F01M11/04; F01M11/045
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1635115A
Cited
US1049331A
Cited
US1696100A
Cited
US1659019A
Cited
US1574129A
Cited
US1824095A
Cited
US1884820A
Cited
US1878901A
Cited
US1955169A
Cited
US2014329A
Cited
US2054205A
Cited
US2020350A
Cited
US2059133A
Cited
US2184363A
Cited
US2275189A
Cited
US2366073A
Cited
US2432290A
Cited
US2338303A
Cited
US2477450A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-15 | 1956-01-14 | 1956-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-15 | 1960-01-14 | 1960-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-15 | 1964-01-14 | 1964-07-15 | $7700.00 | Window Closed / Lapsed |