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US2473453A
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Method of extracting oils from fish material
Assignee: Submarine Signal Co
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Filing: 1946-10-04
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Granted: 1949-06-14
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Expires: 1966-10-04
Abstract
No abstract record available.
Inventors
- 👤 Ralph F Shropshire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:02
CPC Classifications
C; C11; C11B; C11B1/00; Y; Y10; Y10S; Y10S530/00; Y10S530/855; Y10S530/857
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) | 1952-06-13 | 1952-12-13 | 1953-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-13 | 1956-12-13 | 1957-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-13 | 1960-12-13 | 1961-06-14 | $7700.00 | Window Closed / Lapsed |