US2216174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparation of carotin decolorizing material
Assignee: Standard Brands Inc
•
Filing: 1939-08-24
•
Granted: 1940-10-01
•
Expires: 1959-08-24
Abstract
No abstract record available.
Inventors
- 👤 John D Guthrie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:02
CPC Classifications
A; A21; A21D; A21D2/00; A21D2/08; A21D2/36; A21D2/362; A23; A23B; A23B7/00; A23B7/14; A23B7/153; A23B7/157; A23L; A23L5/00; A23L5/40; A23L5/42; A23L5/43; A23L5/49; B; B01; B01J; B01J20/00
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) | 1943-10-01 | 1944-04-01 | 1944-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-10-01 | 1948-04-01 | 1948-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-10-01 | 1952-04-01 | 1952-10-01 | $7700.00 | Window Closed / Lapsed |