US2883774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Earth moving equipment
Assignee: Individual
•
Filing: 1955-06-20
•
Granted: 1959-04-28
•
Expires: 1975-06-20
Abstract
No abstract record available.
Inventors
- 👤 Robert L Clifford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:59
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/96; E02F3/961; E02F3/64; E02F3/6409; E02F3/6436; E02F3/6454; E02F3/6481; E02F3/65; E02F3/653; E02F9/00; E02F9/08; E02F9/0841
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1105214A
Cited
US776994A
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US1048770A
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US1241336A
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US1523189A
Cited
DE646267C
Cited
US2348879A
Cited
US2342407A
Cited
US2377574A
Cited
US2494324A
Cited
US2417019A
Cited
US2595594A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-27 | 1962-10-27 | 1963-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-27 | 1966-10-27 | 1967-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-27 | 1970-10-27 | 1971-04-28 | $7700.00 | Window Closed / Lapsed |