Patent US6259309B1 successfully refreshed from Google Patents.
US3337533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aziridinyl carbamates
Assignee: Dow Chemical Co
•
Filing: 1963-11-26
•
Granted: 1967-08-22
•
Expires: 1983-11-26
Abstract
No abstract record available.
Inventors
- 👤 George E Ham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:19
CPC Classifications
C; C07; C07D; C07D203/00; C07D203/04; C07D203/06; C07D203/08; C07D203/10; C08; C08F; C08F8/00
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)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |