US1987526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High molecular aliphatic sulphides, and process of producing same
Assignee: Henkel AG and Co KGaA
•
Filing: 1933-01-23
•
Granted: 1935-01-08
•
Expires: 1953-01-23
Abstract
No abstract record available.
Inventors
- 👤 Elbel Eberhard
- 👤 Kirstahler Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:54
CPC Classifications
C; C07; C07C; C07C323/00; C07C323/10; C07C323/11; C07C323/12; C07C319/00; C07C319/14; C07C323/50; C07C323/51; C07C323/52; C07C323/64; C07C323/66; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/03
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) | 1938-01-07 | 1938-07-09 | 1939-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-01-07 | 1942-07-09 | 1943-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-01-07 | 1946-07-09 | 1947-01-08 | $7700.00 | Window Closed / Lapsed |