US3084163A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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
2026-11-07 08:11
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:
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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 |