US2780927A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carton freezing apparatus
Assignee: FMC Corp
•
Filing: 1952-08-08
•
Granted: 1957-02-12
•
Expires: 1972-08-08
Abstract
No abstract record available.
Inventors
- 👤 Boyce John
- 👤 John C Olsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:38
CPC Classifications
F; F25; F25D; F25D31/00; F25D31/001; Y; Y10; Y10S; Y10S198/00; Y10S198/952
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1621301A
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US1093815A
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US1084835A
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GB327366A
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US1999596A
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US2215486A
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US2307548A
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US2332170A
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US2538097A
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US2564056A
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US2478465A
Cited
US2605912A
Cited
US2612278A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-12 | 1960-08-13 | 1961-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-12 | 1964-08-13 | 1965-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-12 | 1968-08-13 | 1969-02-12 | $7700.00 | Window Closed / Lapsed |