Patent US2912366A successfully refreshed from Google Patents.
US2912366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the purification of organic solvents
Assignee: Argus Chemical Corp
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Filing: 1958-01-09
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Granted: 1959-11-10
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Expires: 1978-01-09
Abstract
No abstract record available.
Inventors
- 👤 Otto S Kauder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 01:51
CPC Classifications
C; C07; C07D; C07D319/00; C07D319/10; C07D319/12; C07D307/00; C07D307/02; C07D307/04; C07D307/06; C07D307/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
A PROCESS FOR THE PURIFICATION OF ORGANIC SOLVENTS BY ELIMINATING THEREFROM PEROXIDES AND WATER CONTAINED IN SIAD SOLVENTS, WHICH COMPRISES ADMIXING TO SAID SOLVENTS A NEUTRAL ESTER OF PHOSPHOROUS ACID OF THE FORMULA
Claim 2
Dependent Claim
33 words
A PROCESS FOR THE PURIFICATION OF ORGANIC SOLVENTS BY ELIMINATING THEREFROM PEROXIDES AND WATER CONTAINED IN SIAD SOLVENTS, WHICH COMPRISES ADMIXING TO SAID SOLVENTS A NEUTRAL ESTER OF PHOSPHOROUS ACID OF THE FORMULA
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) | 1962-11-09 | 1963-05-11 | 1963-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-09 | 1967-05-11 | 1967-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-09 | 1971-05-11 | 1971-11-10 | $7700.00 | Window Closed / Lapsed |