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Patent US3084163A successfully refreshed from Google Patents.
US3084163A
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Heterocyclic thioalkane sulfonic acids and methods for their production
Assignee: Dehydag Deutsche Hydrierwerke GmbH
•
Filing: 1958-04-29
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Granted: 1963-04-02
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Expires: 1978-04-29
Abstract
No abstract record available.
Inventors
- 👤 Willmund Wolf-Dieter
- 👤 Kirstahler Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:58
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/16; C23F11/165; C07; C07D; C07D237/00; C07D237/02; C07D237/06; C07D237/10; C07D237/18; C07D249/00; C07D249/02; C07D249/08; C07D249/10; C07D249/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
14 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF (A) THOSE COMPOUNDS OF THE FORMULA:
References Cited (Backward Citations)
GB500032A
Cited
US2298533A
Cited
US2536849A
Cited
US2742466A
Cited
US2394306A
Cited
DE823447C
Cited
US2603646A
Cited
US2673203A
Cited
US2685588A
Cited
US2677686A
Cited
GB764340A
Cited
US2849351A
Cited
US2822366A
Cited
US2719849A
Cited
US2723275A
Cited
US2849352A
Cited
US2801244A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |