US2747734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition of matter for removing abradant substances from exfoliated vermiculite and process of using same
Assignee: Individual
•
Filing: 1953-06-12
•
Granted: 1956-05-29
•
Expires: 1973-06-12
Abstract
No abstract record available.
Inventors
- 👤 Milton F Rose
- 👤 Jack E A Stone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:22
CPC Classifications
C; C04; C04B; C04B14/00; C04B14/02; C04B14/04; C04B14/20; C04B14/204
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
THE METHOD OF CLEANING PARTICLES OF EXFOLIATED VERMICULITE BY REMOVING PARTICLES OF ABRADANTS THEREFROM CONSISTING OF MIXING THE SAID VERMICULITE PARTICLES TO BE CLEANED, WITH SLIGHT AGITATION, IN A FLUID COMPOSITION OF MATTER COMPOSED OF WATER 1200 PARTS; COMMERCIAL HYDROGEN PEROXIDE 1 PART; COMMERCIAL AMMONIUM HYDROXIDE 1 PART; AND COMMERCIAL SODIUM HYPOCHLORITE 1 PART;A ALL PARTS BY VOLUME; ALLOWING THE MIXTURE TO STAND QUIESCENT UNTIL THE VERMICULITE PARTICLES FLOAT ON THE SURFACE OF SAID FLUID COMPOSITION AND THE ABRADANTS SINK IN SAID FLUID COMPOSITION; SKIMMING THE CLEANED VERMICULITE PARTICLES FROM THE SURFACE OF SAID FLUID COMPOSITION, AND DISCARDING THE SUBSTANCES IN SAID FLUID COMPOSITION WHICH DO NOT FLOAT.
Claim 2
Independent Claim
108 words
THE METHOD OF CLEANING PARTICLES OF EXFOLIATED VERMICULITE BY REMOVING PARTICLES OF ABRADANTS THEREFROM CONSISTING OF MIXING THE SAID VERMICULITE PARTICLES TO BE CLEANED, WITH SLIGHT AGITATION, IN A FLUID COMPOSITION OF MATTER COMPOSED OF WATER 1200 PARTS; COMMERCIAL HYDROGEN PEROXIDE 1 PART; COMMERCIAL AMMONIUM HYDROXIDE 1 PART; AND COMMERCIAL SODIUM HYPOCHLORITE 1 PART;A ALL PARTS BY VOLUME; ALLOWING THE MIXTURE TO STAND QUIESCENT UNTIL THE VERMICULITE PARTICLES FLOAT ON THE SURFACE OF SAID FLUID COMPOSITION AND THE ABRADANTS SINK IN SAID FLUID COMPOSITION; SKIMMING THE CLEANED VERMICULITE PARTICLES FROM THE SURFACE OF SAID FLUID COMPOSITION, AND DISCARDING THE SUBSTANCES IN SAID FLUID COMPOSITION WHICH DO NOT FLOAT.
References Cited (Backward Citations)
DE315352C
Cited
US2465228A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |