US2443492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Earth-mover blade with vibrating attachment
Assignee: LA PLANT-CHOATE MANUFACTURING Co Inc
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Filing: 1944-10-13
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Granted: 1948-06-15
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Expires: 1964-10-13
Abstract
No abstract record available.
Inventors
- 👤 Ellsworth W Austin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:46
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/80; E02F3/815; E02F3/8155; E02F3/64; E02F3/6454; E02F3/65; E02F3/654; E02F3/658; Y; Y10; Y10S; Y10S37/00; Y10S37/904
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) | 1951-06-15 | 1951-12-15 | 1952-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-15 | 1955-12-15 | 1956-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-15 | 1959-12-15 | 1960-06-15 | $7700.00 | Window Closed / Lapsed |