Patent US2800496A successfully refreshed from Google Patents.
US2800496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic nitrile production
Assignee: California Research LLC
•
Filing: 1955-03-15
•
Granted: 1957-07-23
•
Expires: 1975-03-15
Abstract
No abstract record available.
Inventors
- 👤 Jr William G Toland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:29
CPC Classifications
C; C07; C07C; C07C253/00; C07C253/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A PROCSESS WHICH COMPRISES PRODUCING ORGANIC NITRILES BY REACTING, AS THE SOLE ESSENTIAL REACTANTS (1) A MATERIAL SELECTED FROM THE GROUP CONSISTING OF AMMONIUM SULFATES AND AMMONIUM PHOSPHATES AND (2) A MATERIAL SELECTED FROM THE GROUP CONSISTING OF THERMALLY STABLE AROMATIC AND SATURATED ALIPHATIC ORGANIC CARBOXYLIC ACIDS, AMIDES OF SAID ACIDS AND AMMONIUM SALTS OF SAID ACIDS, SAID REACTION BEING EFFECTED BY FORMING A MIXTURE OF SAID SOLE ESSENTIAL REACTANTS (1) AND (2) AND HEATING SAID MIXTURE TO AN ELEVATED TEMPERATURE ABOVE ABOUT 200*C.
Claim 2
Dependent Claim
84 words
A PROCSESS WHICH COMPRISES PRODUCING ORGANIC NITRILES BY REACTING, AS THE SOLE ESSENTIAL REACTANTS (1) A MATERIAL SELECTED FROM THE GROUP CONSISTING OF AMMONIUM SULFATES AND AMMONIUM PHOSPHATES AND (2) A MATERIAL SELECTED FROM THE GROUP CONSISTING OF THERMALLY STABLE AROMATIC AND SATURATED ALIPHATIC ORGANIC CARBOXYLIC ACIDS, AMIDES OF SAID ACIDS AND AMMONIUM SALTS OF SAID ACIDS, SAID REACTION BEING EFFECTED BY FORMING A MIXTURE OF SAID SOLE ESSENTIAL REACTANTS (1) AND (2) AND HEATING SAID MIXTURE TO AN ELEVATED TEMPERATURE ABOVE ABOUT 200*C.
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) | 1960-07-22 | 1961-01-21 | 1961-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-22 | 1965-01-21 | 1965-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-22 | 1969-01-21 | 1969-07-23 | $7700.00 | Window Closed / Lapsed |