US2816909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of 2-nitroesters
Assignee: Purdue Research Foundation
•
Filing: 1956-11-05
•
Granted: 1957-12-17
•
Expires: 1976-11-05
Abstract
No abstract record available.
Inventors
- 👤 Kornblum Nathan
- 👤 Powers Jack Wesley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:30
CPC Classifications
C; C07; C07C; C07C201/00; C07C201/06; C07C201/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
A PROCESS FOR PREPARING AN ALPHA-NITROESTER HAVING AN ALPHA-HYDROGEN FROM THE CORRESPONDING ALPHA-HALOESTER WHICH COMPRISES MIXING THE ALPHA-HALOESTER IN DIMETHYLSULFOXIDE WITH AN ALKALI METAL NITRITE AND A COMPOUND SELECTED FROM THE CLASS CONSISTING OF PHLOROGLUCINOL, RESORCINOL, AND CATECHOL.
Claim 2
Dependent Claim
38 words
A PROCESS FOR PREPARING AN ALPHA-NITROESTER HAVING AN ALPHA-HYDROGEN FROM THE CORRESPONDING ALPHA-HALOESTER WHICH COMPRISES MIXING THE ALPHA-HALOESTER IN DIMETHYLSULFOXIDE WITH AN ALKALI METAL NITRITE AND A COMPOUND SELECTED FROM THE CLASS CONSISTING OF PHLOROGLUCINOL, RESORCINOL, AND CATECHOL.
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) | 1960-12-16 | 1961-06-17 | 1961-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-16 | 1965-06-17 | 1965-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-16 | 1969-06-17 | 1969-12-17 | $7700.00 | Window Closed / Lapsed |