Patent US2442973A successfully refreshed from Google Patents.
US2442973A
Expired / Lapsed
US
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Treatment of textile material with alkaline cellulose zincate solutions
Assignee: Individual
•
Filing: 1944-07-12
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Granted: 1948-06-08
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Expires: 1964-07-12
Abstract
No abstract record available.
Inventors
- 👤 Sidney M Edelstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:48
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/01; D06M15/03; D06M15/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2072770A
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US1085783A
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US1269340A
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GB320062A
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US2009015A
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US2289085A
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US2129708A
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US2204859A
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US2299612A
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US2322427A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-08 | 1951-12-08 | 1952-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-08 | 1955-12-08 | 1956-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-08 | 1959-12-08 | 1960-06-08 | $7700.00 | Window Closed / Lapsed |