US2988832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Positive ejection mechanism for earth moving apparatus
Assignee: Individual
•
Filing: 1958-04-21
•
Granted: 1961-06-20
•
Expires: 1978-04-21
Abstract
No abstract record available.
Inventors
- 👤 James E Hancock
- 👤 Highway Amarillo
- 👤 Sylvester D Fetters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:29
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/64; E02F3/65; E02F3/654; E02F3/656; E02F3/6454; E02F3/6481
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US555270A
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US2169946A
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US2179532A
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US2263028A
Cited
FR888166A
Cited
US2383978A
Cited
US2425664A
Cited
GB627789A
Cited
US2791041A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |