Patent US2735200A successfully refreshed from Google Patents.
US2735200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
F arps
Assignee: —
•
Filing: —
•
Granted: 1956-02-21
•
Expires: 1973-02-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:30
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/7609; E02F3/7613
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1466464A
Cited
US1522378A
Cited
US1864639A
Cited
US1861731A
Cited
US2088564A
Cited
US2057326A
Cited
US2166424A
Cited
US2242826A
Cited
US2333837A
Cited
US2374298A
Cited
US2545739A
Cited
US2426410A
Cited
US2464003A
Cited
US2559816A
Cited
US2539174A
Cited
US2522583A
Cited
US2589896A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-20 | 1959-08-22 | 1960-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-20 | 1963-08-22 | 1964-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-20 | 1967-08-22 | 1968-02-21 | $7700.00 | Window Closed / Lapsed |