US2765336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-haloformamides
Assignee: Rohm and Haas Co
•
Filing: 1951-07-31
•
Granted: 1956-10-02
•
Expires: 1971-07-31
Abstract
No abstract record available.
Inventors
- 👤 Melvin D Hurwitz
- 👤 Robert W Auten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:15
CPC Classifications
C; C07; C07C; C07C233/00; C07C233/01; C07C233/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
AS A NEW COMPOSITION OF MATTER, AN N-HALOFORMAMIDE HAVING THE FORMULA
Claim 2
Dependent Claim
11 words
AS A NEW COMPOSITION OF MATTER, AN N-HALOFORMAMIDE HAVING THE FORMULA
References Cited (Backward Citations)
US2640846A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-02 | 1960-04-02 | 1960-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-02 | 1964-04-02 | 1964-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-02 | 1968-04-02 | 1968-10-02 | $7700.00 | Window Closed / Lapsed |