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Patent US1892881A successfully refreshed from Google Patents.
US1892881A
Expired / Lapsed
US
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Elevating power shovel
Assignee: CHAS M FULLER Corp Ltd
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Filing: 1930-12-23
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Granted: 1933-01-03
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Expires: 1950-12-23
Abstract
No abstract record available.
Inventors
- 👤 Charles M Fuller
- 👤 Arthur C Denison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:54
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/34; E02F3/348; E02F3/3483
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1936-01-03 | 1936-07-04 | 1937-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-01-03 | 1940-07-04 | 1941-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-01-03 | 1944-07-04 | 1945-01-03 | $7700.00 | Window Closed / Lapsed |