US3052669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making alkylenimines
Assignee: Richardson Co
•
Filing: 1959-02-24
•
Granted: 1962-09-04
•
Expires: 1979-02-24
Abstract
No abstract record available.
Inventors
- 👤 Gavlin Gilbert
- 👤 Hattori Kiyoshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:28
CPC Classifications
C; C07; C07D; C07D203/00; C07D203/04; C07D203/06; C07D203/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
A PROCESS FOR MAKING AN ALKYLENIMINE HAVING THE FORMULA
Claim 2
Dependent Claim
9 words
A PROCESS FOR MAKING AN ALKYLENIMINE HAVING THE FORMULA
References Cited (Backward Citations)
US2206273A
Cited
US2931804A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-03 | 1966-03-05 | 1966-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-03 | 1970-03-05 | 1970-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-03 | 1974-03-05 | 1974-09-04 | $7700.00 | Window Closed / Lapsed |