Patent US2604175A successfully refreshed from Google Patents.
US2604175A
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Crane propelling system and control thereof
Assignee: Harnischfeger Corp
•
Filing: 1945-06-21
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Granted: 1952-07-22
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Expires: 1965-06-21
Abstract
No abstract record available.
Inventors
- 👤 Will S Burdick
- 👤 Henry S Jacobs
- 👤 Schneider Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:08
CPC Classifications
B; B66; B66C; B66C23/00; B66C23/62; B66C23/72; B66C23/78; B66C2700/00; B66C2700/03; B66C2700/0321; B66C2700/0357; B66C2700/0378; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86622
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-22 | 1956-01-21 | 1956-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-22 | 1960-01-21 | 1960-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-22 | 1964-01-21 | 1964-07-22 | $7700.00 | Window Closed / Lapsed |