Patent US2775587A successfully refreshed from Google Patents.
US2775587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Haloaryl aziridinecarboxamides
Assignee: Dow Chemical Co
•
Filing: 1955-05-23
•
Granted: 1956-12-25
•
Expires: 1975-05-23
Abstract
No abstract record available.
Inventors
- 👤 Bryant C Fischback
- 👤 Guy H Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:59
CPC Classifications
C; C07; C07D; C07D203/00; C07D203/04; C07D203/06; C07D203/16; C07D203/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
References Cited (Backward Citations)
US2312863A
Cited
DE863343C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-25 | 1960-06-25 | 1960-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-25 | 1964-06-25 | 1964-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-25 | 1968-06-25 | 1968-12-25 | $7700.00 | Window Closed / Lapsed |