US2874182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-aralkyl-n-(acyloxyalkyl)-2, 2-dihaloalkanamides and their preparation
Assignee: STWB Inc
•
Filing: 1955-04-19
•
Granted: 1959-02-17
•
Expires: 1975-04-19
Abstract
No abstract record available.
Inventors
- 👤 Alexander R Surrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:22
CPC Classifications
C; C07; C07C; C07C233/00; C07C233/01; C07C233/16
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
5 words
A COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND HAVING THE FORMULA
Claim 3
Dependent Claim
11 words
A PROCESS FOR THE PREPARATION OF A COMPOUND HAVING THE FORMULA
Claim 4
Dependent Claim
11 words
A PROCESS FOR THE PREPARATION OF A COMPOUND HAVING THE FORMULA
References Cited (Backward Citations)
US2231905A
Cited
US2290881A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-16 | 1962-08-18 | 1963-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-16 | 1966-08-18 | 1967-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-16 | 1970-08-18 | 1971-02-17 | $7700.00 | Window Closed / Lapsed |