US3376710A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Food freezing apparatus
Assignee: Individual
•
Filing: 1966-05-16
•
Granted: 1968-04-09
•
Expires: 1986-05-16
Abstract
No abstract record available.
Inventors
- 👤 Hirtensteiner Walter Earl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:00
CPC Classifications
F; F25; F25D; F25D3/00; F25D3/10; F25D3/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2059970A
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US2237256A
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US2527542A
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US2447249A
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US2680957A
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US2951353A
Cited
US3166425A
Cited
US3139739A
Cited
US3238736A
Cited
US3258935A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-09 | 1971-10-09 | 1972-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-09 | 1975-10-09 | 1976-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-09 | 1979-10-09 | 1980-04-09 | $7700.00 | Window Closed / Lapsed |