US3277161A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of cyclohexylammonium-n-cyclohexylsulfamate free of cyclohexylamine sulfate
Assignee: Abbott Laboratories
•
Filing: 1963-05-02
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Granted: 1966-10-04
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Expires: 1983-05-02
Abstract
No abstract record available.
Inventors
- 👤 Rudolph G Sundberg
- 👤 Wayne E Trussell
- 👤 Robert R Smutney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:39
CPC Classifications
C; C07; C07C; C07C307/00; C07C307/02; A; A23; A23L; A23L27/00; A23L27/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
THE PROCESS OF REMOVING CYCLOHEXYLAMINE SULFATE FROM A FLUID MIXTURE OF CYCLOHEXYLAMMONIUM-N-CYCLOHEXYSLUFAMATE AND CYCLOHEXYLAMINE SULFATE IN CYCLOHEXYLAMINE, COMPRISING FILTERING SAID MIXTURE AT A TEMPERATURE OF BETWEEN AND THE BOILING POINT OF SAID FLUID MIXTURE, WHEREBY T IS CALCULATED ACCORDING TO THE FORMULA
Claim 2
Dependent Claim
42 words
THE PROCESS OF REMOVING CYCLOHEXYLAMINE SULFATE FROM A FLUID MIXTURE OF CYCLOHEXYLAMMONIUM-N-CYCLOHEXYSLUFAMATE AND CYCLOHEXYLAMINE SULFATE IN CYCLOHEXYLAMINE, COMPRISING FILTERING SAID MIXTURE AT A TEMPERATURE OF BETWEEN AND THE BOILING POINT OF SAID FLUID MIXTURE, WHEREBY T IS CALCULATED ACCORDING TO THE FORMULA
References Cited (Backward Citations)
US2826605A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |