Patent US4593483A successfully refreshed from Google Patents.
Patent US2599778A successfully refreshed from Google Patents.
US2599778A
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Trench excavator
Assignee: Individual
•
Filing: 1945-11-23
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Granted: 1952-06-10
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Expires: 1965-11-23
Abstract
No abstract record available.
Inventors
- 👤 Daniel F Przybylski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:46
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/08; E02F3/12; E02F3/14; E02F3/148; E02F3/082; E02F3/10; E02F3/144
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1722585A
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US1630231A
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US1852344A
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US1832787A
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US1959768A
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US1987928A
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US2169518A
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US2259659A
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US2252837A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-10 | 1955-12-10 | 1956-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-10 | 1959-12-10 | 1960-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-10 | 1963-12-10 | 1964-06-10 | $7700.00 | Window Closed / Lapsed |