Patent US2484685A successfully refreshed from Google Patents.
US2484685A
Expired / Lapsed
US
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Ventilated excavator cab
Assignee: Harnischfeger Corp
•
Filing: 1945-04-19
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Granted: 1949-10-11
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Expires: 1965-04-19
Abstract
No abstract record available.
Inventors
- 👤 Will S Burdick
- 👤 Henry S Jacobs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:32
CPC Classifications
E; E02; E02F; E02F9/00; E02F9/16; E02F9/163
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1315996A
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US1987456A
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US1751686A
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US1859797A
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US1796198A
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US1898859A
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US2203477A
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US2292192A
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US2289910A
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US2300418A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-10 | 1953-04-11 | 1953-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-10 | 1957-04-11 | 1957-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-10 | 1961-04-11 | 1961-10-11 | $7700.00 | Window Closed / Lapsed |