US2424459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ambulant soil treating apparatus
Assignee: Harnischfeger Corp
•
Filing: 1943-12-13
•
Granted: 1947-07-22
•
Expires: 1963-12-13
Abstract
No abstract record available.
Inventors
- 👤 Henry C Hettelsater
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:05
CPC Classifications
E; E02; E02D; E02D3/00; E02D3/12; E02D3/126; E01; E01C; E01C19/00; E01C19/02; E01C19/10; E01C19/1059; E01C19/1068; E01C19/1077; E01C21/00; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/78; E02F3/783; E02F5/00; E02F5/02; E02F5/12; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/85978; Y10T137/86131; Y10T137/877
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1632969A
Cited
US1953890A
Cited
US2046417A
Cited
US2053709A
Cited
US2196205A
Cited
US2211263A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-07-21 | 1951-01-20 | 1951-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-21 | 1955-01-20 | 1955-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-21 | 1959-01-20 | 1959-07-22 | $7700.00 | Window Closed / Lapsed |