US3052706A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfur, nitrogen-containing esters, and preparation thereof
Assignee: F Hoffmann La Roche AG
•
Filing: 1959-11-23
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Granted: 1962-09-04
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Expires: 1979-11-23
Abstract
No abstract record available.
Inventors
- 👤 Goldberg Moses Wolf
- 👤 Lehr Hanns Hanina
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:56
CPC Classifications
C; C07; C07C; C07C311/00; C07C311/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF DIESTERS OF M-BENZENEDISULFOHYDROXAMIC ACID WITH LOWER ALIPHATIC ALCOHOLS WHICH CONSIST ENTIRELY OF CARBON AND HYDROGEN ATOMS AND A SINGLE OXYGEN ATOM, AND SALTS, THEREOF WITH NON-TOXIC, PHERMACEUTICALLY ACCEPTABLE BASES; SAID COMPOUND CONTAINING FROM ZERO TO TWO (INCLUSIVE) NUCLEAR SUBSTITUENTS SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL, BROMINE CHLORINE, AMINO AND LOWER ALKANOYLAMINO.
Claim 2
Dependent Claim
61 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF DIESTERS OF M-BENZENEDISULFOHYDROXAMIC ACID WITH LOWER ALIPHATIC ALCOHOLS WHICH CONSIST ENTIRELY OF CARBON AND HYDROGEN ATOMS AND A SINGLE OXYGEN ATOM, AND SALTS, THEREOF WITH NON-TOXIC, PHERMACEUTICALLY ACCEPTABLE BASES; SAID COMPOUND CONTAINING FROM ZERO TO TWO (INCLUSIVE) NUCLEAR SUBSTITUENTS SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL, BROMINE CHLORINE, AMINO AND LOWER ALKANOYLAMINO.
References Cited (Backward Citations)
US2321891A
Cited
US2640853A
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 |