Patent US3578749A successfully refreshed from Google Patents.
Patent US3396475A successfully refreshed from Google Patents.
US3396475A
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US
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Freeze drying system
Assignee: Individual
•
Filing: 1966-01-10
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Granted: 1968-08-13
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Expires: 1986-01-10
Abstract
No abstract record available.
Inventors
- 👤 Scheibel Edward George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:32
CPC Classifications
A; A23; A23F; A23F5/00; A23F5/24; A23F5/28; A23F5/32; F; F26; F26B; F26B5/00; F26B5/04; F26B5/06; F26B5/065; Y; Y10; Y10S; Y10S159/00; Y10S159/05
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) | 1971-08-13 | 1972-02-12 | 1972-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-13 | 1976-02-12 | 1976-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-13 | 1980-02-12 | 1980-08-13 | $7700.00 | Window Closed / Lapsed |