Patent US2445260A successfully refreshed from Google Patents.
US2445260A
Expired / Lapsed
US
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Hauling scraper
Assignee: LEN O BIRD
•
Filing: 1944-07-18
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Granted: 1948-07-13
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Expires: 1964-07-18
Abstract
No abstract record available.
Inventors
- 👤 Kirk L Brimhall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:16
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/64; E02F3/65; E02F3/654; E02F3/657; E02F3/6454; E02F3/6463; E02F3/656; Y; Y10; Y10S; Y10S56/00; Y10S56/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-13 | 1952-01-12 | 1952-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-13 | 1956-01-12 | 1956-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-13 | 1960-01-12 | 1960-07-13 | $7700.00 | Window Closed / Lapsed |