US2496504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spreader hopper and mounting attachment
Assignee: Individual
•
Filing: 1946-08-09
•
Granted: 1950-02-07
•
Expires: 1966-08-09
Abstract
No abstract record available.
Inventors
- 👤 Fred K Tarrant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:35
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/12; E01C19/20; E01C19/205; E01C2019/2055; E01C2019/207; E01C2019/2095
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US873708A
Cited
GB253717A
Cited
FR607843A
Cited
US1864612A
Cited
US1928030A
Cited
US2003628A
Cited
US2152259A
Cited
US2244987A
Cited
US2317853A
Cited
US2323345A
Cited
US2332903A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-06 | 1953-08-08 | 1954-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-06 | 1957-08-08 | 1958-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-06 | 1961-08-08 | 1962-02-07 | $7700.00 | Window Closed / Lapsed |