Patent US2501907A successfully refreshed from Google Patents.
US2501907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Triamino benzene monohydrate
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1946-01-29
•
Granted: 1950-03-28
•
Expires: 1966-01-29
Abstract
No abstract record available.
Inventors
- 👤 Mclean Andrew
- 👤 Tetlow William Edward
- 👤 Munro John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:00
CPC Classifications
C; C07; C07C; C07C209/00; C07C209/30; C07C209/32; C07C209/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
30 words
A PROCESS FOR THE PRODUCTION OF 1:3:5 TRIAMINO-BENZENE MONOHYDRATE WHICH COMPRISES CONTACTING 1:3:5 TRINITRO BENZENE IN AN ETHYL ACETATE SOLVENT WITH HYDROGEN IN THE PRESENCE OF A "RANEY" NICKEL CATALYST.
Claim 2
Dependent Claim
30 words
A PROCESS FOR THE PRODUCTION OF 1:3:5 TRIAMINO-BENZENE MONOHYDRATE WHICH COMPRISES CONTACTING 1:3:5 TRINITRO BENZENE IN AN ETHYL ACETATE SOLVENT WITH HYDROGEN IN THE PRESENCE OF A "RANEY" NICKEL CATALYST.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-27 | 1953-09-26 | 1954-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-27 | 1957-09-26 | 1958-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-27 | 1961-09-26 | 1962-03-28 | $7700.00 | Window Closed / Lapsed |