Patent US2299200A successfully refreshed from Google Patents.
US2299200A
Expired / Lapsed
US
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Treatment of cellulosic fabrics
Assignee: Wyeth Holdings LLC
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Filing: 1940-10-10
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Granted: 1942-10-20
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Expires: 1960-10-10
Abstract
No abstract record available.
Inventors
- 👤 Adams Pierrepont
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:37
CPC Classifications
D; D21; D21H; D21H27/00; D21H27/06; D06; D06M; D06M11/00; D06M11/51; D06M11/55; D06M13/00; D06M13/322; D06M13/35; D06M13/355; D06M13/358; D21H17/00; D21H17/63; D21H17/65; D21H5/00; D21H5/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-10-19 | 1946-04-20 | 1946-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-10-19 | 1950-04-20 | 1950-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-10-19 | 1954-04-20 | 1954-10-20 | $7700.00 | Window Closed / Lapsed |