Patent US2424904A successfully refreshed from Google Patents.
US2424904A
Expired / Lapsed
US
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Process for the treatment of regenerated sheet cellulose to improve its dielectric properties
Assignee: Individual
•
Filing: 1940-10-05
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Granted: 1947-07-29
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Expires: 1960-10-05
Abstract
No abstract record available.
Inventors
- 👤 Ruben Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:23
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/008
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1601289A
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US1728471A
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US1968883A
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FR631797A
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FR670747A
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US1980413A
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US2042588A
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US1989046A
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US2205449A
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US2206850A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-07-28 | 1951-01-27 | 1951-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-28 | 1955-01-27 | 1955-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-28 | 1959-01-27 | 1959-07-29 | $7700.00 | Window Closed / Lapsed |