Patent US3500552A successfully refreshed from Google Patents.
US3500552A
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Method and apparatus for drying foods
Assignee: United States Department of Agriculture
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Filing: 1968-03-07
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Granted: 1970-03-17
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Expires: 1988-03-07
Abstract
No abstract record available.
Inventors
- 👤 Daniel F Farkas
- 👤 Melvin E Lazar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:16
CPC Classifications
F; F26; F26B; F26B7/00; F26B7/007; A; A23; A23B; A23B2/00; A23B2/90; A23B2/95; A23L; A23L7/00; A23L7/10; A23L7/161; A23L7/174; A23L7/183; B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/38; D; D06; D06C; D06C7/00; D06C2700/00; D06C2700/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US275596A
Cited
US1751841A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-16 | 1973-09-15 | 1974-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-16 | 1977-09-15 | 1978-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-16 | 1981-09-15 | 1982-03-17 | $7700.00 | Window Closed / Lapsed |