Patent US1975153A successfully refreshed from Google Patents.
US1975153A
Expired / Lapsed
US
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Method of producing multicolored threads
Assignee: DuPont Rayon Co
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Filing: 1932-02-03
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Granted: 1934-10-02
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Expires: 1952-02-03
Abstract
No abstract record available.
Inventors
- 👤 Jacquet Philibert Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:11
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/28; D01F; D01F1/00; D01F1/02; D01F1/06; Y; Y10; Y10S; Y10S264/00; Y10S264/26; Y10S425/00; Y10S425/217
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) | 1937-10-01 | 1938-04-02 | 1938-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-10-01 | 1942-04-02 | 1942-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-10-01 | 1946-04-02 | 1946-10-02 | $7700.00 | Window Closed / Lapsed |