US2794705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of continuously producing a phosphorus sulfide
Assignee: Monsanto Chemicals Ltd
•
Filing: 1954-07-23
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Granted: 1957-06-04
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Expires: 1974-07-23
Abstract
No abstract record available.
Inventors
- 👤 Robert B Hudson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:37
CPC Classifications
C; C01; C01B; C01B25/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
THE METHOD OF CONTINUOUSLY PRODUCING A PHOSPHORUS SULFIDE, WHICH COMPRISES CONTINUOUSLY INTRODUCING LIQUID PHOSPHORUS AND LIQUID SULFUR INTO A BOILING MASS CONSISTING OF SAID PHOSPHORUS SULFIDE AND THEREBY EFFECTING A CONTINUOUS REACTION BETWEEN SAID PHOSPHORUS AND SAID SULFUR AND CONTINUOUS DISTILLATION OF SAID REACTION PRODUCT, SAID REACTANTS BEING INTRODUCED CONTINUOUSLY INTO SAID BOILING
Claim 2
Independent Claim
53 words
THE METHOD OF CONTINUOUSLY PRODUCING A PHOSPHORUS SULFIDE, WHICH COMPRISES CONTINUOUSLY INTRODUCING LIQUID PHOSPHORUS AND LIQUID SULFUR INTO A BOILING MASS CONSISTING OF SAID PHOSPHORUS SULFIDE AND THEREBY EFFECTING A CONTINUOUS REACTION BETWEEN SAID PHOSPHORUS AND SAID SULFUR AND CONTINUOUS DISTILLATION OF SAID REACTION PRODUCT, SAID REACTANTS BEING INTRODUCED CONTINUOUSLY INTO SAID BOILING
References Cited (Backward Citations)
US2569128A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-03 | 1960-12-03 | 1961-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-03 | 1964-12-03 | 1965-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-03 | 1968-12-03 | 1969-06-04 | $7700.00 | Window Closed / Lapsed |