US2147306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fatty acid distillation
Assignee: Foster Wheeler Inc
•
Filing: 1935-12-05
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Granted: 1939-02-14
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Expires: 1955-12-05
Abstract
No abstract record available.
Inventors
- 👤 Charles E Mcculloch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:11
CPC Classifications
C; C11; C11C; C11C1/00; C11C1/08; C11C1/10; C11C1/103; C11C1/106; C07; C07C; C07C51/00; C07C51/42; C07C51/43; C07C51/44; C11C1/005
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) | 1942-02-13 | 1942-08-15 | 1943-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-02-13 | 1946-08-15 | 1947-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-02-13 | 1950-08-15 | 1951-02-14 | $7700.00 | Window Closed / Lapsed |