US3394555A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power-refrigeration system utilizing waste heat
Assignee: McDonnell Douglas Corp
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Filing: 1964-11-10
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Granted: 1968-07-30
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Expires: 1984-11-10
Abstract
No abstract record available.
Inventors
- 👤 Fleur James K La
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:38
CPC Classifications
F; F22; F22B; F22B1/00; F22B1/02; F22B1/18; F22B1/1892; F17; F17C; F17C9/00; F17C9/02; F17C9/04; F25; F25B; F25B23/00; F25B27/00; F25B27/02; F25J; F25J3/00; F25J3/02; F25J3/04; F25J3/04248; F25J3/04278; F25J3/044; F25J3/04521; F25J3/04527; F25J3/04533; F25J3/04612; F25J3/04763; F25J3/04866; F25J3/04872; F25J3/04878; F17C2221/00; F17C2221/01; F17C2221/011; F17C2221/016; F17C2221/017; F17C2223/00; F17C2223/01; F17C2223/0107; F17C2223/0123; F17C2223/0146; F17C2223/0153; F17C2223/0161; F17C2227/00; F17C2227/01; F17C2227/0128; F17C2227/0157; F17C2227/03; F17C2227/0337; F25J2200/00; F25J2200/30; F25J2200/50; F25J2200/74; F25J2205/00; F25J2205/24; F25J2270/00; F25J2270/14; F25J2270/16; F25J2270/30; F25J2270/60; Y; Y02; Y02A; Y02A30/00; Y02A30/27; Y02A30/274; Y10; Y10S; Y10S62/00; Y10S62/912; Y10S62/915
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2458894A
Cited
US2394253A
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US2409159A
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US2471123A
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US3239697A
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FR1312727A
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US3234738A
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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) | 1971-07-30 | 1972-01-29 | 1972-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-30 | 1976-01-29 | 1976-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-30 | 1980-01-29 | 1980-07-30 | $7700.00 | Window Closed / Lapsed |