Patent US2816566A successfully refreshed from Google Patents.
US2385276A
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US
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Hoist
Assignee: Oliver Iron Mining Co
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Filing: 1944-10-05
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Granted: 1945-09-18
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Expires: 1964-10-05
Abstract
No abstract record available.
Inventors
- 👤 Hannibal T Hart
- 👤 Hastings A Barber
- 👤 Everett W Burbeck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:31
CPC Classifications
B; B66; B66B; B66B9/00; B66B9/06; E; E21; E21D; E21D7/00; E21D7/02; E21F; E21F13/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1948-09-17 | 1949-03-19 | 1949-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-09-17 | 1953-03-19 | 1953-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-09-17 | 1957-03-19 | 1957-09-18 | $7700.00 | Window Closed / Lapsed |