Patent US2865574A successfully refreshed from Google Patents.
US2865574A
Expired / Lapsed
US
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Core holder for winding machines
Assignee: Micafil AG
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Filing: 1955-01-11
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Granted: 1958-12-23
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Expires: 1975-01-11
Abstract
No abstract record available.
Inventors
- 👤 Blumentritt Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:50
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/02; H01F41/04; H01F41/06; H01F41/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE50858C
Cited
US1879882A
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US1752489A
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US1957068A
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US2249506A
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US2467643A
Cited
US2721708A
Cited
US2793817A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |