US2434746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of preparing organic sulphonic derivatives
Assignee: Colgate Palmolive Co
•
Filing: 1939-12-20
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Granted: 1948-01-20
•
Expires: 1959-12-20
Abstract
No abstract record available.
Inventors
- 👤 Ross John
- 👤 Potter Dwight James
- 👤 Yolles Seymour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:12
CPC Classifications
C; C07; C07C; C07C303/00; C07C303/32; C07B; C07B45/00; C07C303/02; C07C303/04; C07C303/10; Y; Y10; Y10S; Y10S204/00; Y10S204/902; Y10S204/903; Y10S204/904
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2061617A
Cited
GB259329A
Cited
US2171117A
Cited
US1966187A
Cited
US2023387A
Cited
US2193824A
Cited
US2383319A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-01-19 | 1951-07-21 | 1952-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-01-19 | 1955-07-21 | 1956-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-01-19 | 1959-07-21 | 1960-01-20 | $7700.00 | Window Closed / Lapsed |