US3787407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Melamine-derivatives
Assignee: Bayer AG
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Filing: 1971-08-27
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Granted: 1974-01-22
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Expires: 1991-08-27
Abstract
Abstract NEW MELAMINE DERIVATIVES OF THE GENERAL FORMULA 2-((R1-O-)2-P(=O)-CH2-N(-R2)-),4-(R3-N(-R4)-),6-(R5-N(-R6) -)-S-TRIAZINE IN WHICH THE RADICALS R1, INDEPENDENTLY OF ONE ANOTHER, MEAN A LOWER ALKYL RADICAL; AND R2, R3, R4, R5 AND R6, INDEPENDENTLY OF ONE ANOTHER, MEAN A HYDROGEN ATOM, A HYDROXYMETHYL GROUP OR A RADICAL OF THE FORMULA -CH2-P(=O)(-O-R1)2 A PROCESS FOR THEIR PRODUCTION AND THEIR USE AS FLAMEPROOFING AGENTS FOR TEXTILE MATERIALS.
Inventors
- 👤 U Hendricks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:39
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423; D06M15/43; D06M15/433; C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6515; C07F9/6521; D06M13/00; D06M13/244; D06M13/282; D06M13/288
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) | 1977-01-21 | 1977-07-23 | 1978-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-21 | 1981-07-23 | 1982-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-21 | 1985-07-23 | 1986-01-22 | $7700.00 | Window Closed / Lapsed |