Patent US3655719A successfully refreshed from Google Patents.
Patent US3380803A successfully refreshed from Google Patents.
US3380803A
Expired / Lapsed
US
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Process for manufacture of alkali metal and alkaline earth metal hexafluorophosphates
Assignee: Olin Corp
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Filing: 1966-02-03
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Granted: 1968-04-30
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Expires: 1986-02-03
Abstract
No abstract record available.
Inventors
- 👤 Albert W Jache
- 👤 Kongpricha Santad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:44
CPC Classifications
C; C01; C01D; C01D17/00; C01D17/003; C01D15/00; C01D15/005; C01F; C01F11/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
PROCESS FOR PREPARING HEXAFLUOROPHOSPHATES WHICH COMPRISES HEATING A MIXTURE OF A MEMBER OF THE GROUP CONSISTING OF ALKALI METAL FLUORIDES AND ALKALINE EARTH METAL FLUORIDES, ELEMENTAL PHOSPHORUS AND ANHYDROUS HYDROGEN FLUORIDE AT 180 TO 220*C. UNDER AUTOGENOUS PRESSURE TO FORM A REACTION MIXTURE CONTAINING A HEXAFLUOROPHOSPHATE OF SAID METAL AND SEPARATING SAID HEXAFLUOROPHOSPHATE FROM SAID REACTION MIXTURE.
Claim 2
Dependent Claim
57 words
PROCESS FOR PREPARING HEXAFLUOROPHOSPHATES WHICH COMPRISES HEATING A MIXTURE OF A MEMBER OF THE GROUP CONSISTING OF ALKALI METAL FLUORIDES AND ALKALINE EARTH METAL FLUORIDES, ELEMENTAL PHOSPHORUS AND ANHYDROUS HYDROGEN FLUORIDE AT 180 TO 220*C. UNDER AUTOGENOUS PRESSURE TO FORM A REACTION MIXTURE CONTAINING A HEXAFLUOROPHOSPHATE OF SAID METAL AND SEPARATING SAID HEXAFLUOROPHOSPHATE FROM SAID REACTION MIXTURE.
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) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |