US2430031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Betaine derivative compositions
Assignee: Individual
•
Filing: 1944-06-26
•
Granted: 1947-11-04
•
Expires: 1964-06-26
Abstract
No abstract record available.
Inventors
- 👤 Shappirio Sol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:16
CPC Classifications
C; C11; C11B; C11B5/00; C11B5/0042; C07; C07C; C07C243/00; C07C243/24; C07C243/26; C07C243/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-11-03 | 1951-05-05 | 1951-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-03 | 1955-05-05 | 1955-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-03 | 1959-05-05 | 1959-11-04 | $7700.00 | Window Closed / Lapsed |