Patent US2842873A successfully refreshed from Google Patents.
US2842873A
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Hydraulic positioning means for trencher boom
Assignee: Auburn Machine Works Inc
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Filing: 1954-08-03
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Granted: 1958-07-15
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Expires: 1974-08-03
Abstract
No abstract record available.
Inventors
- 👤 Warren E George
- 👤 Glenn W Mcininch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:57
CPC Classifications
E; E02; E02F; E02F5/00; E02F5/02; E02F5/14; E02F5/145; E02F3/00; E02F3/04; E02F3/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US286900A
Cited
US2714773A
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US1955154A
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US2330802A
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US2519075A
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US2519076A
Cited
US2519077A
Cited
US2637259A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |