US3144446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mono and bis nu-(3alpha, 17alpha-dihydroxy-11, 20-dioxo-5beta-pregnan-21-yl) quaternary ammonium salts of triethylenediamine
Assignee: Pharmacia and Upjohn Co
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Filing: 1963-12-20
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Granted: 1964-08-11
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Expires: 1983-12-20
Abstract
No abstract record available.
Inventors
- 👤 Robert B Moffett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:50
CPC Classifications
C; C07; C07J; C07J43/00; C07J75/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
20 words
A COMPOUND SELECTED FROM THE CLASS CONSISTING OF (A) MONO AND BIS QUATERNARY AMMONIUM SALTS OF TRIETHYLENEDIAMINE HAVING THE FORMULAE:
Claim 2
Dependent Claim
20 words
A COMPOUND SELECTED FROM THE CLASS CONSISTING OF (A) MONO AND BIS QUATERNARY AMMONIUM SALTS OF TRIETHYLENEDIAMINE HAVING THE FORMULAE:
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) | 1967-08-11 | 1968-02-10 | 1968-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-11 | 1972-02-10 | 1972-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-11 | 1976-02-10 | 1976-08-11 | $7700.00 | Window Closed / Lapsed |