US2854328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Briquetted rimming agents and method of making same
Assignee: Rossborough Supply Co
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Filing: 1957-06-06
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Granted: 1958-09-30
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Expires: 1977-06-06
Abstract
No abstract record available.
Inventors
- 👤 Walter N Rossborough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:52
CPC Classifications
C; C21; C21C; C21C7/00; C21C7/04; C21C7/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
AN ANHYDROUS BRIQUETTED RIMMING AGENT OF A FLUORIDE MEMBER OF THE GROUP CONSISTING OF CALCIUM FLUORIDE, SODIUM FLUORIDE, SODIUM ALUMINUM FLUORIDE AND MIXTURES OF THESE POWDERS, WHICH CONSISTS OF THE POWDER BOUND TOGETHER WITH 3 TO 5 PERCENT OF A BINDER OF A MEMBER OF THE GROUP CONSISTING OF SYNTHETIC SHELLAC AND SYNTHETIC RESIN, SAID POWDER AND BINDER BEING COMPRESSED TO 3,500 TO 6,500 P.S.I., COATED ON THE EXTERIOR SIDE WITH SODIUM SILICATE AND A WETTING AGENT, AND HEATED TO 100-500*F. FOR ABOUT 15 MINUTES.
Claim 2
Dependent Claim
85 words
AN ANHYDROUS BRIQUETTED RIMMING AGENT OF A FLUORIDE MEMBER OF THE GROUP CONSISTING OF CALCIUM FLUORIDE, SODIUM FLUORIDE, SODIUM ALUMINUM FLUORIDE AND MIXTURES OF THESE POWDERS, WHICH CONSISTS OF THE POWDER BOUND TOGETHER WITH 3 TO 5 PERCENT OF A BINDER OF A MEMBER OF THE GROUP CONSISTING OF SYNTHETIC SHELLAC AND SYNTHETIC RESIN, SAID POWDER AND BINDER BEING COMPRESSED TO 3,500 TO 6,500 P.S.I., COATED ON THE EXTERIOR SIDE WITH SODIUM SILICATE AND A WETTING AGENT, AND HEATED TO 100-500*F. FOR ABOUT 15 MINUTES.
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) | 1961-09-29 | 1962-03-31 | 1962-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-29 | 1966-03-31 | 1966-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-29 | 1970-03-31 | 1970-09-30 | $7700.00 | Window Closed / Lapsed |