Patent US2801479A successfully refreshed from Google Patents.
US2801479A
Expired / Lapsed
US
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Excavating and loading device
Assignee: Individual
•
Filing: 1954-09-03
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Granted: 1957-08-06
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Expires: 1974-09-03
Abstract
No abstract record available.
Inventors
- 👤 Charles W Brauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:59
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/88; E02F3/90; E02F3/92; E02F3/9256; E02F3/9268; E02F3/9281; E02F3/18; E02F3/183
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US401896A
Cited
US532183A
Cited
FR346161A
Cited
US1515506A
Cited
US1550311A
Cited
US2633649A
Cited
US2671696A
Cited
DE885015C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-05 | 1961-02-04 | 1961-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-05 | 1965-02-04 | 1965-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-05 | 1969-02-04 | 1969-08-06 | $7700.00 | Window Closed / Lapsed |