US2602518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Driven dirigible wheel mounting for coal mine haulage vehicles
Assignee: Goodman Manufacturing Co LP
•
Filing: 1947-08-30
•
Granted: 1952-07-08
•
Expires: 1967-08-30
Abstract
No abstract record available.
Inventors
- 👤 William R Beck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:30
CPC Classifications
B; B60; B60K; B60K17/00; B60K17/30; E; E21; E21F; E21F13/00; E21F13/02; E21F13/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190402642A
Cited
US1883357A
Cited
US1797578A
Cited
US1826113A
Cited
GB434330A
Cited
GB520465A
Cited
US2336386A
Cited
US2395333A
Cited
US2435814A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-08 | 1956-01-07 | 1956-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-08 | 1960-01-07 | 1960-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-08 | 1964-01-07 | 1964-07-08 | $7700.00 | Window Closed / Lapsed |