US3098848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diarylthiophene sulfonic acids
Assignee: Millennium Petrochemicals Inc
•
Filing: 1960-08-15
•
Granted: 1963-07-23
•
Expires: 1980-08-15
Abstract
No abstract record available.
Inventors
- 👤 Braus Harry
- 👤 Otto A Homberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:19
CPC Classifications
C; C07; C07D; C07D333/00; C07D333/02; C07D333/04; C07D333/06; C07D333/14; C07D333/18; C07D333/26; C07D333/30; C07D333/34
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
5 words
THE COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
5 words
THE COMPOUND HAVING THE FORMULA
Claim 3
Dependent Claim
5 words
THE COMPOUND HAVING THE FORMULA
Claim 4
Dependent Claim
5 words
THE COMPOUND HAVING THE FORMULA
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) | 1966-07-22 | 1967-01-21 | 1967-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-22 | 1971-01-21 | 1971-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-22 | 1975-01-21 | 1975-07-23 | $7700.00 | Window Closed / Lapsed |