Patent US2422246A successfully refreshed from Google Patents.
US2422246A
Expired / Lapsed
US
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Carboxylic acids vicinally substituted with two mercapto groups
Assignee: EIDP Inc
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Filing: 1944-02-16
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Granted: 1947-06-17
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Expires: 1964-02-16
Abstract
No abstract record available.
Inventors
- 👤 Lazier Wilbur Arthur
- 👤 Albert A Pavlic
- 👤 Peppel William Jennings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:35
CPC Classifications
C; C07; C07C; C07C323/00; C08; C08K; C08K5/00; C08K5/0008; C08K5/0025
Claims Analysis
Total Claims: 0
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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) | 1950-06-16 | 1950-12-16 | 1951-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-06-16 | 1954-12-16 | 1955-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-06-16 | 1958-12-16 | 1959-06-17 | $7700.00 | Window Closed / Lapsed |