US2774602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material spreading apparatus
Assignee: Individual
•
Filing: 1952-01-10
•
Granted: 1956-12-18
•
Expires: 1972-01-10
Abstract
No abstract record available.
Inventors
- 👤 George H Sanderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:42
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/12; E01C19/20; E01C19/201; E01C19/202; E01C2019/2055; E01C2019/207; E01C2019/2095
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US758693A
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US880908A
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US1623743A
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US1838631A
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US2282205A
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US2360870A
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US2430020A
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US2350476A
Cited
US2421211A
Cited
US2504786A
Cited
US2529889A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-18 | 1960-06-18 | 1960-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-18 | 1964-06-18 | 1964-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-18 | 1968-06-18 | 1968-12-18 | $7700.00 | Window Closed / Lapsed |