US3169122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bis-phenol aziridinecarboxylic esters
Assignee: Dow Chemical Co
•
Filing: 1959-09-04
•
Granted: 1965-02-09
•
Expires: 1979-09-04
Abstract
No abstract record available.
Inventors
- 👤 John H Hennes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:26
CPC Classifications
C; C07; C07D; C07D203/00; C07D203/04; C07D203/06; C07D203/16; C07D203/20; C08; C08G; C08G71/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
THE COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
5 words
THE COMPOUND HAVING THE FORMULA
References Cited (Backward Citations)
NL63864C
Cited
US2265416A
Cited
DE900137C
Cited
FR899955A
Cited
US2708617A
Cited
US2655494A
Cited
US2800464A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-09 | 1968-08-10 | 1969-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-09 | 1972-08-10 | 1973-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-09 | 1976-08-10 | 1977-02-09 | $7700.00 | Window Closed / Lapsed |