US2152259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sand spreading apparatus
Assignee: Individual
•
Filing: 1938-08-02
•
Granted: 1939-03-28
•
Expires: 1958-08-02
Abstract
No abstract record available.
Inventors
- 👤 Albert F Humphrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:12
CPC Classifications
B; B60; B60B; B60B39/00; B60B39/02; B60B39/04; E; E01; E01C; E01C19/00; E01C19/12; E01C19/20; E01C19/201; E01C19/2015; E01C2019/2055; E01C2019/207; E01C2019/2095
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-03-27 | 1942-09-26 | 1943-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-03-27 | 1946-09-26 | 1947-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-03-27 | 1950-09-26 | 1951-03-28 | $7700.00 | Window Closed / Lapsed |