US3135748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heterocyclic substituted carbodhmides and method of preparation
Assignee: Arthur D Little Inc
•
Filing: 1960-05-27
•
Granted: 1964-06-02
•
Expires: 1980-05-27
Abstract
No abstract record available.
Inventors
- 👤 John C Sheehan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:55
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/12; C07D295/125; C07D295/13; C07D257/00; C07D257/02; C07D257/04; C07H; C07H13/00; C07H13/12; C09; C09B; C09B43/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A COMPOUND OF THE GROUP CONSISTING OF AN ORGANIC MONOCARBODIIMIDE HAVING THE FORMULA:
Claim 2
Dependent Claim
13 words
A COMPOUND OF THE GROUP CONSISTING OF AN ORGANIC MONOCARBODIIMIDE HAVING THE FORMULA:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |