Patent US4480185A successfully refreshed from Google Patents.
US3063545A
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US
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Assignee: Columbus McKinnon Corp
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Filing: 1958-06-23
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Granted: 1962-11-13
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Expires: 1978-06-23
Abstract
No abstract record available.
Inventors
- 👤 Kenneth D Schreyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:00
CPC Classifications
E; E21; E21F; E21F13/00; E21F13/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US652420A
Cited
US1329914A
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US1990549A
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US1969372A
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US2263458A
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US2608041A
Cited
US2619216A
Cited
US2673638A
Cited
US2828851A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-12 | 1966-05-14 | 1966-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-12 | 1970-05-14 | 1970-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-12 | 1974-05-14 | 1974-11-13 | $7700.00 | Window Closed / Lapsed |