US2525546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aggregate spreader
Assignee: Individual
•
Filing: 1946-02-26
•
Granted: 1950-10-10
•
Expires: 1966-02-26
Abstract
No abstract record available.
Inventors
- 👤 Harris Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:10
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/12; E01C19/20; E01C19/201; E01C19/202
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1025646A
Cited
US1261388A
Cited
US1251176A
Cited
US1433257A
Cited
US1518294A
Cited
US1584042A
Cited
US1790050A
Cited
US2254104A
Cited
US2280234A
Cited
US2360870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-09 | 1954-04-10 | 1954-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-09 | 1958-04-10 | 1958-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-09 | 1962-04-10 | 1962-10-10 | $7700.00 | Window Closed / Lapsed |