US2563035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of nitrogen and sulfur containing beta-substituted carboxylic acids
Assignee: Goodrich Corp
•
Filing: 1949-07-05
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Granted: 1951-08-07
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Expires: 1969-07-05
Abstract
No abstract record available.
Inventors
- 👤 Thomas L Gresham
- 👤 Forrest W Shaver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:01
CPC Classifications
C; C07; C07C; C07C335/00; C07C335/30; C07C335/32; C07C335/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
3 words
BETA-PHENYL-ISOTHIOUREIDO PROPIONIC ACID.
Claim 2
Independent Claim
19 words
THE METHOD WHICH COMPRISES REACTING A SATURATED ALIPHATIC BETA-LACTONE WITH A NITROGEN AND SULFUR CONTAINING COMPOUND POSSESSING THE STRUCTURE.
References Cited (Backward Citations)
US2474838A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-06 | 1955-02-05 | 1955-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-06 | 1959-02-05 | 1959-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-06 | 1963-02-05 | 1963-08-07 | $7700.00 | Window Closed / Lapsed |