US2982112A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigeration apparatus for contact cooling of small areas
Assignee: FREDERICK G KEYES Inc
•
Filing: 1957-02-27
•
Granted: 1961-05-02
•
Expires: 1977-02-27
Abstract
No abstract record available.
Inventors
- 👤 Frederick G Keyes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:52
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/42; A61M5/422; A61B; A61B18/00; A61B18/02; A61M19/00; A61B5/00; A61B5/15; A61B5/150007; A61B5/150053; A61B5/150106; A61B5/150129; A61M2205/00; A61M2205/36; A61M2205/3606
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US735403A
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FR436246A
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US1515119A
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US1693249A
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US1702066A
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US1731575A
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US2121579A
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US2604294A
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US2746264A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |