US3730890A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire retardant composition and method of production
Assignee: Chemonics Industries Inc
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Filing: 1971-12-03
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Granted: 1973-05-01
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Expires: 1991-12-03
Abstract
Abstract POSITION. THE COMPOSITION IS ADAPTED FOR BOTH AERIAL AND GROUND APPLICATION. ATTAPULGITE CLAY IS SUSPENDED IN LIQUID AMMONIUM POLYPHOSPHATE TO FORM A CONCENTRATE. VARIOUS COMPONENTS SUCH AS CORROSION INHIBITORS, GUM THICKENERS AND COLORING AGENTS WHICH ARE INSOLUBLE IN THE POLYPHOSPHATE LIQUID ARE CARRIED AND MAINTAINED IN SUSPENSION BY THE ATTAPULGITE CLAY. UPON DILUTION OF THE CONCENTRATE WITH WATER AS REQUIRED TO PRODUCE A RETARDANT COMPOSITION WITH THE DESIRED VISCOSITY, THE COMPONENTS ARE UNIFORMLY DISPERSED AND/OR DISSOLVED IN THE FINAL FIRE-RETARDANT COM-
Inventors
- 👤 K Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:40
CPC Classifications
C; C09; C09K; C09K21/00; C09K21/02; A; A62; A62D; A62D1/00; A62D1/0028; A62D1/0035
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) | 1976-04-30 | 1976-10-30 | 1977-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-30 | 1980-10-30 | 1981-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-30 | 1984-10-30 | 1985-05-01 | $7700.00 | Window Closed / Lapsed |