US3725272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flameproofing agent for textile materials
Assignee: BASF SE
•
Filing: 1970-07-21
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Granted: 1973-04-03
•
Expires: 1990-07-21
Abstract
Abstract A NOVEL FLAMEPROOFING AGENT FOR TEXTILE MATERIALS CONTAINING AS ACTIVE INGREDIENTS A CARBOMOYL ALKANE PHOSPHONIC ACID DIALKYL ESTER FREE FROM N-HYDROXYMETHYL AND N-ALKOXYMETHYL GROUPS AND AN N-HYDROXYMETHYL COMPOUND OF AN AMINO-S-TRIAZINE WHICH MAY BE NON-ETHERIFIED OR PARTLY OR COMPLETELY ETHERIFIED AT THE N-HYDROXYMETHYL GROUPS.
Inventors
- 👤 H Petersen
- 👤 F Fuchs
- 👤 W Ruemens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:32
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/244; D06M13/282; D06M13/288; C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4006
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) | 1976-04-02 | 1976-10-02 | 1977-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-02 | 1980-10-02 | 1981-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-02 | 1984-10-02 | 1985-04-03 | $7700.00 | Window Closed / Lapsed |