US2365783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulphonation of branched chain olefins
Assignee: Procter and Gamble Co
•
Filing: 1940-07-23
•
Granted: 1944-12-26
•
Expires: 1960-07-23
Abstract
No abstract record available.
Inventors
- 👤 Suter Chester Merie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:17
CPC Classifications
C; C07; C07C; C07C303/00; C07C303/02; C07C303/04; C07C303/08; C07C303/06
Claims Analysis
Total Claims: 0
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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) | 1947-12-26 | 1948-06-26 | 1948-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-12-26 | 1952-06-26 | 1952-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-12-26 | 1956-06-26 | 1956-12-26 | $7700.00 | Window Closed / Lapsed |