US2191564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydroxythioethers and process of producing same
Assignee: FIRM SOCIETY OF CHEMICAL INDUSTRY IN BASLE
•
Filing: 1938-07-12
•
Granted: 1940-02-27
•
Expires: 1958-07-12
Abstract
No abstract record available.
Inventors
- 👤 Graenacher Charles
- 👤 Sallmann Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:21
CPC Classifications
C; C07; C07C; C07C319/00; C07C319/14; C07C319/18; C07C2601/00; C07C2601/12; C07C2601/14
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1943-02-26 | 1943-08-28 | 1944-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-02-26 | 1947-08-28 | 1948-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-02-26 | 1951-08-28 | 1952-02-27 | $7700.00 | Window Closed / Lapsed |