US2793082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ore hoist
Assignee: Individual
•
Filing: 1950-01-09
•
Granted: 1957-05-21
•
Expires: 1970-01-09
Abstract
No abstract record available.
Inventors
- 👤 Jr Percy S Gardner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:52
CPC Classifications
E; E21; E21F; E21F13/00; E21F13/04; E21F13/042
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) | 1960-05-20 | 1960-11-19 | 1961-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-20 | 1964-11-19 | 1965-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-20 | 1968-11-19 | 1969-05-21 | $7700.00 | Window Closed / Lapsed |