US2855402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
3, 3'-biisoxazole and its preparation from acetylene and nitric oxide
Assignee: EIDP Inc
•
Filing: 1956-11-16
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Granted: 1958-10-07
•
Expires: 1976-11-16
Abstract
No abstract record available.
Inventors
- 👤 Cramer Richard David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:40
CPC Classifications
C; C07; C07D; C07D261/00; C07D261/02; C07D261/06; C07D261/10; C07D261/18; C07D261/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
A METHOD FOR PREPARING 3,3''-BIIISOXAZOLE WHICH COMPRISES REACTING ACETYLENE WITH NITRIC OXIDE IN THE PRESENCE OF AN INERT DILUENT AT PRESSURES OF 100-1500 LBS./SQ. IN. AT A TEMPERATURE OF 50-150*C. 3. 3,3''-BIISOXAZOLE.
Claim 2
Independent Claim
32 words
A METHOD FOR PREPARING 3,3''-BIIISOXAZOLE WHICH COMPRISES REACTING ACETYLENE WITH NITRIC OXIDE IN THE PRESENCE OF AN INERT DILUENT AT PRESSURES OF 100-1500 LBS./SQ. IN. AT A TEMPERATURE OF 50-150*C. 3. 3,3''-BIISOXAZOLE.
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) | 1961-10-06 | 1962-04-07 | 1962-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-06 | 1966-04-07 | 1966-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-06 | 1970-04-07 | 1970-10-07 | $7700.00 | Window Closed / Lapsed |