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US2878784A
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Hydraulic brake for trencher
Assignee: Individual
•
Filing: 1956-02-02
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Granted: 1959-03-24
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Expires: 1976-02-02
Abstract
No abstract record available.
Inventors
- 👤 John S Pilch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:09
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/34; E02F3/3405; E02F3/3408; E02F3/30; E02F3/32; E02F3/36; E02F3/42; E02F3/425; E02F3/96; E02F3/963; E02F3/964; E02F9/00; E02F9/08; E02F9/085; E02F9/20; E02F9/22; E02F9/2264; E02F9/2275
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1314153A
Cited
US1132203A
Cited
DE571979C
Cited
US2362864A
Cited
US2300112A
Cited
US2738772A
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 |