Patent US3756779A successfully refreshed from Google Patents.
US3756779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spectral analysis of ketoximes
Assignee: United States Department of the Air Force
•
Filing: 1971-11-16
•
Granted: 1973-09-04
•
Expires: 1991-11-16
Abstract
Abstract A PROCESS IS PROVIDED WHEREBY HYDROGEN CHLORIDE GAS IS ADDED TO A SAMPLE OF A KETOXIME IN SOLUTION IN AN AROMATIC SOLVENT AFTER WHCIH THE SAME IS SUBJECTED TO NUCLEAR MAGNETIC SPECTROSCOPY. THE SPECTRUM OBTAINED MAKES IT POSSIBLE TO DETERMINE WHETHER THE SAMPLE IS A SINGLE KETOXIME OR A MIXTURE OF KETOXIME ISOMERS AS WELL AS WHETHER A SINGLE KETOXIME HAS A SYN OR ANTI FORM OR THE RELATIVE AMOUNT OF THE SYN AND ANTI FORMS IN ISOMERIC MIXTURES.
Inventors
- 👤 R Rondeau
- 👤 B Fox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:02
CPC Classifications
G; G01; G01N; G01N24/00; G01N24/08; Y; Y10; Y10T; Y10T436/00; Y10T436/17; Y10T436/20; Y10T436/203332; Y10T436/24
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |