US3579536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Addition products of methylformamide or succinimide with glyoxal
Assignee: United States Department of Agriculture
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Filing: 1966-02-23
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Granted: 1971-05-18
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Expires: 1986-02-23
Abstract
Abstract THE INVENTION PROVIDES THE COMPOUNDS N,N''-DIHYDROXYETHYLENEBIS(METHYLFORMAMIDE), N,N''-DIHYDROXYETHYLENEBISSUCCINIMIDE, AND N,N''-(1,2-DIACETOXYETHYLENE)BISSUCCINIMIDE WHICH ARE USEFUL AS TEXTILE FINISHING AGENTS FOR CELLULOSIC FABRICS, IN RESIN APPLICATION, AND IN PHARMACEUTICAL AND ALLIED INDUSTRIES.
Inventors
- 👤 Sidney L Vail
- 👤 Andrew G Pierce Jr
- 👤 Robert H Barker
- 👤 Clifford M Moran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:46
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/18; C07D207/22; C07D207/24; C07D207/26; C07D207/263; C07D207/27; C07D207/30; C07D207/34; C07D207/36; C07D207/40; C07D207/404; C07D207/44; C07D207/444; C07D207/448; C07D207/452; C07D241/00; C07D241/02; C07D241/06; C07D241/08; D; D06; D06M; D06M13/00; D06M13/322; D06M13/35; D06M13/402; D06M13/405; D06M13/418; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-17 | 1974-11-16 | 1975-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-17 | 1978-11-16 | 1979-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-17 | 1982-11-16 | 1983-05-18 | $7700.00 | Window Closed / Lapsed |