US2878598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detachable bulldozer
Assignee: Individual
•
Filing: 1954-06-22
•
Granted: 1959-03-24
•
Expires: 1974-06-22
Abstract
No abstract record available.
Inventors
- 👤 John S Pilch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:46
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/769; E02F3/28; E02F3/34; E02F3/3405; E02F3/3408; E02F3/96; E02F3/961
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2732963A
Cited
US2387764A
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US2502681A
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US2655742A
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US2417520A
Cited
US2495057A
Cited
GB632890A
Cited
US2660816A
Cited
US2662459A
Cited
US2667708A
Cited
FR1029839A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-23 | 1962-09-22 | 1963-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-23 | 1966-09-22 | 1967-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-23 | 1970-09-22 | 1971-03-24 | $7700.00 | Window Closed / Lapsed |