US2679119A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Auxiliary scraper and loading apron for carry-type excavating scoops
Assignee: Koehring Co
•
Filing: 1948-06-17
•
Granted: 1954-05-25
•
Expires: 1968-06-17
Abstract
No abstract record available.
Inventors
- 👤 Frank B Robb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:07
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/64; E02F3/65; E02F3/654; E02F3/657; E02F3/6409; E02F3/6427
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2249356A
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US2252763A
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US2328715A
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US2418813A
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US2396287A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-24 | 1957-11-23 | 1958-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-24 | 1961-11-23 | 1962-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-24 | 1965-11-23 | 1966-05-25 | $7700.00 | Window Closed / Lapsed |