US2421121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of dehydrating foodstuffs
Assignee: California Institute Research Foundation
•
Filing: 1945-05-05
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Granted: 1947-05-27
•
Expires: 1965-05-05
Abstract
No abstract record available.
Inventors
- 👤 Arie J Haagen-Smit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:11
CPC Classifications
F; F26; F26B; F26B21/00; F26B21/30; F26B21/33; F26B21/331
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1929437A
Cited
US2225627A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-05-26 | 1950-11-25 | 1951-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-05-26 | 1954-11-25 | 1955-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-05-26 | 1958-11-25 | 1959-05-27 | $7700.00 | Window Closed / Lapsed |