Patent US3232934A successfully refreshed from Google Patents.
US3232934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Omega-(1-amino-5 and 8-anthraquinonylamino)-1-ammonium alkanes of 2 to 3 carbon atoms
Assignee: Honeywell International Inc
•
Filing: 1961-09-22
•
Granted: 1966-02-01
•
Expires: 1981-09-22
Abstract
No abstract record available.
Inventors
- 👤 Robert C Hoare
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:43
CPC Classifications
C; C09; C09B; C09B1/00; C09B1/002; C09B1/16; C09B1/20; C09B1/26; C09B1/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
THE COMPOUND OF THE FORMULA:
Claim 2
Dependent Claim
5 words
THE COMPOUND OF THE FORMULA:
References Cited (Backward Citations)
US2992063A
Cited
US2051005A
Cited
DE714986C
Cited
US2255045A
Cited
US2220129A
Cited
US2430771A
Cited
US2611772A
Cited
US2727045A
Cited
GB807241A
Cited
US2901479A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |