US2225627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the concentration and preservation of food products and biological substances
Assignee: FJ Stokes Machine Co
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Filing: 1937-12-07
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Granted: 1940-12-24
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Expires: 1957-12-07
Abstract
No abstract record available.
Inventors
- 👤 Earl W Flosdorf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:09
CPC Classifications
A; A61; A61L; A61L2/00; A61L2/02; A23; A23B; A23B2/00; A23B2/90; A23B2/92; Y; Y10; Y10S; Y10S159/00; Y10S159/05; Y10S159/11
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) | 1943-12-24 | 1944-06-24 | 1944-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-12-24 | 1948-06-24 | 1948-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-12-24 | 1952-06-24 | 1952-12-24 | $7700.00 | Window Closed / Lapsed |