US2579494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-(2-thenoylmethyl) hexamethylene-tetraminium halides
Assignee: EIDP Inc
•
Filing: 1950-08-02
•
Granted: 1951-12-25
•
Expires: 1970-08-02
Abstract
No abstract record available.
Inventors
- 👤 Edward C Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:14
CPC Classifications
C; C07; C07D; C07D487/00; C07D487/12; C07D487/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A COMPOUND OF THE FORMULA, WHERE R1 IS A MEMBER OF THE CLASS CONSISTING OF HYDROGEN AND LOWER ALKYL RADICALS, R2 IS A MEMHER OF THE CLASS CONSISTING OF HYDROGEN, HALOGEN, NITRO, AND LOWER ALKYL RADICALS, AND X IS SELECTED FROM THE GROUP CONSISTING OF CHLORINE AND BROMINE.
Claim 2
Dependent Claim
48 words
A COMPOUND OF THE FORMULA, WHERE R1 IS A MEMBER OF THE CLASS CONSISTING OF HYDROGEN AND LOWER ALKYL RADICALS, R2 IS A MEMHER OF THE CLASS CONSISTING OF HYDROGEN, HALOGEN, NITRO, AND LOWER ALKYL RADICALS, AND X IS SELECTED FROM THE GROUP CONSISTING OF CHLORINE AND BROMINE.
References Cited (Backward Citations)
US2471090A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-24 | 1955-06-25 | 1955-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-24 | 1959-06-25 | 1959-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-24 | 1963-06-25 | 1963-12-25 | $7700.00 | Window Closed / Lapsed |