US3469327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Freeze drying apparatus
Assignee: HJ Heinz Co Ltd
•
Filing: 1967-12-05
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Granted: 1969-09-30
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Expires: 1987-12-05
Abstract
No abstract record available.
Inventors
- 👤 Viacheslav Jansen Janovtchik
- 👤 Camillo Catelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:45
CPC Classifications
F; F26; F26B; F26B5/00; F26B5/04; F26B5/042; A; A23; A23B; A23B2/00; A23B2/90; A23B2/92; F26B5/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2441021A
Cited
US2751687A
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US3192645A
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US3234661A
Cited
US3289314A
Cited
US3354609A
Cited
US3273259A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-29 | 1973-03-31 | 1973-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-29 | 1977-03-31 | 1977-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-29 | 1981-03-31 | 1981-09-30 | $7700.00 | Window Closed / Lapsed |