US3067830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mine haulage vehicle
Assignee: Consolidation Coal Co
•
Filing: 1958-12-22
•
Granted: 1962-12-11
•
Expires: 1978-12-22
Abstract
No abstract record available.
Inventors
- 👤 Arthur L Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:43
CPC Classifications
E; E21; E21F; E21F13/00; E21F13/02; E21F13/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1863972A
Cited
US1934385A
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US2199517A
Cited
US2197854A
Cited
US2378892A
Cited
US2602518A
Cited
US2599061A
Cited
US2754015A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |