Patent US3069304A successfully refreshed from Google Patents.
US3069304A
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Method of providing a mandrel with a compact uniform covering
Assignee: Carl Freudenberg KG
•
Filing: 1959-11-16
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Granted: 1962-12-18
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Expires: 1979-11-16
Abstract
No abstract record available.
Inventors
- 👤 Fahrbach Erich
- 👤 Heling Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:03
CPC Classifications
D; D21; D21G; D21G1/00; D21G1/02; D21G1/0233; D21G1/024; D01; D01H; D01H5/00; D01H5/18; D01H5/70; D01H5/74; D01H2700/00; D01H2700/245; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1062; Y10T156/1075
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1795556A
Cited
US1753701A
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US2041520A
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US2653140A
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US2772195A
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US2801461A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-17 | 1966-06-18 | 1966-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-17 | 1970-06-18 | 1970-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-17 | 1974-06-18 | 1974-12-18 | $7700.00 | Window Closed / Lapsed |