US2719074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of ferrous chloride
Assignee: EIDP Inc
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Filing: 1953-12-23
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Granted: 1955-09-27
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Expires: 1973-12-23
Abstract
No abstract record available.
Inventors
- 👤 Brace Neal Orin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:55
CPC Classifications
C; C01; C01G; C01G49/00; C01G49/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A PROCESS FOR THE PREPARATION OF FERROUS CHLORIDE WHICH COMPRISES HEATING A SLURRY OF FERRIC CHLORIDE IN AN EXCESS OF 1 MOLE OF CHLOROBENZENE TO 2 MOLES OF FERRIC CHLORIDE UNTIL THE EVOLUTION OF HYDROGEN CHLORIDE CEASES AND ISOLATING THE FERROUS CHLORIDE.
Claim 2
Dependent Claim
42 words
A PROCESS FOR THE PREPARATION OF FERROUS CHLORIDE WHICH COMPRISES HEATING A SLURRY OF FERRIC CHLORIDE IN AN EXCESS OF 1 MOLE OF CHLOROBENZENE TO 2 MOLES OF FERRIC CHLORIDE UNTIL THE EVOLUTION OF HYDROGEN CHLORIDE CEASES AND ISOLATING THE FERROUS CHLORIDE.
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) | 1958-09-26 | 1959-03-28 | 1959-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-26 | 1963-03-28 | 1963-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-26 | 1967-03-28 | 1967-09-27 | $7700.00 | Window Closed / Lapsed |