US2933491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nitro-substituted lactams
Assignee: Aerojet Rocketdyne Inc
•
Filing: 1955-07-11
•
Granted: 1960-04-19
•
Expires: 1975-07-11
Abstract
No abstract record available.
Inventors
- 👤 Klager Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:14
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/02; C08G69/08; C08G69/14; C06; C06B; C06B25/00; C06B45/00; C06B45/04; C06B45/06; C06B45/10; C06B45/105
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
12 words
AS NEW COMPOSITIONS OF MATTER, THE NITRO-SUBSTITUTED LACTAMS HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
12 words
AS NEW COMPOSITIONS OF MATTER, THE NITRO-SUBSTITUTED LACTAMS HAVING THE GENERAL FORMULA
Claim 3
Independent Claim
9 words
THE METHOD OF PREPARING NITRO-LACTAMS HAVING THE GENERAL FORMULA:
Claim 4
Independent Claim
9 words
THE METHOD OF PREPARING NITRO-LACTAMS HAVING THE GENERAL FORMULA:
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) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |