US3249534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire retarding composition and method of using phosphate rock and shale
Assignee: Individual
•
Filing: 1962-10-17
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Granted: 1966-05-03
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Expires: 1982-10-17
Abstract
No abstract record available.
Inventors
- 👤 Ware Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:05
CPC Classifications
A; A62; A62C; A62C3/00; A62C3/02; C; C09; C09K; C09K21/00; C09K21/02; C09K21/04; C09K21/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A METHOD OF FIRE-PROOFING FLAMMABLE MATERIALS WHICH COMPRISES TREATING SAID MATERIALS WITH AN EFFECTIVE AMOUNT OF A FIRE-PROOFING COMPOSITION CONSISTING ESSENTIALLY OF A NATURAL-OCCURRING PHOSPHATE ROCK HAVING ABOUT 0.25 TO 40% BY WEIGHT OF PHOSPHOROUS OXIDE AND A PARTICLE SIZE RANGING FROM ABOUT 50-500 MESH AND 5-85% BY WEIGHT OF THE COMPOSITION OF A CARRIER; SAID CARRIER CONSISTING OF A WATER-BASE COMPOSITION SELECTED FROM THE GROUP CONSISTING OF POLYVINYLCHLORIDE, POLYVINYLACETATE, ALGINATES, ASPHALTS, SODIUM SILICATE, DEXTRIN, WATER-SOLUBLE ETHYLENE OXIDE RESIN, SODIUM CARBOXYMETHYL CELLULOSE, HYDROXY ETHYL CELLULOSE, GUM ARABIC, GUM KARAYA, AND GUM TRAGACANTH.
Claim 2
Independent Claim
92 words
A METHOD OF FIRE-PROOFING FLAMMABLE MATERIALS WHICH COMPRISES TREATING SAID MATERIALS WITH AN EFFECTIVE AMOUNT OF A FIRE-PROOFING COMPOSITION CONSISTING ESSENTIALLY OF A NATURAL-OCCURRING PHOSPHATE ROCK HAVING ABOUT 0.25 TO 40% BY WEIGHT OF PHOSPHOROUS OXIDE AND A PARTICLE SIZE RANGING FROM ABOUT 50-500 MESH AND 5-85% BY WEIGHT OF THE COMPOSITION OF A CARRIER; SAID CARRIER CONSISTING OF A WATER-BASE COMPOSITION SELECTED FROM THE GROUP CONSISTING OF POLYVINYLCHLORIDE, POLYVINYLACETATE, ALGINATES, ASPHALTS, SODIUM SILICATE, DEXTRIN, WATER-SOLUBLE ETHYLENE OXIDE RESIN, SODIUM CARBOXYMETHYL CELLULOSE, HYDROXY ETHYL CELLULOSE, GUM ARABIC, GUM KARAYA, AND GUM TRAGACANTH.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |