Patent US1546874A successfully refreshed from Google Patents.
US1546874A
Expired / Lapsed
US
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Excavating machine
Assignee: Individual
•
Filing: 1925-05-12
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Granted: 1925-07-21
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Expires: 1945-05-12
Abstract
No abstract record available.
Inventors
- 👤 Walsh Daniel Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:30
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/46; E02F3/50; E02F3/28; E02F3/36; E02F3/40; E02F3/407; E02F3/4075
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) | 1928-07-20 | 1929-01-19 | 1929-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-07-20 | 1933-01-19 | 1933-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-07-20 | 1937-01-19 | 1937-07-21 | $7700.00 | Window Closed / Lapsed |