US2037679A
Expired / Lapsed
US
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Method and apparatus for rejecting heat from a cascade system
Assignee: Union Carbide Corp
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Filing: 1935-01-24
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Granted: 1936-04-14
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Expires: 1955-01-24
Abstract
No abstract record available.
Inventors
- 👤 Leo I Dana
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:10
CPC Classifications
F; F17; F17C; F17C9/00; F17C9/02; F17C2201/00; F17C2201/01; F17C2201/0128; F17C2203/00; F17C2203/03; F17C2203/0304; F17C2203/0337; F17C2203/06; F17C2203/0602; F17C2203/0604; F17C2203/0612; F17C2203/0626; F17C2203/0629; F17C2203/0634; F17C2203/0636; F17C2205/00; F17C2205/01; F17C2205/0123; F17C2205/013; F17C2205/0134; F17C2205/0146; F17C2205/0153; F17C2205/0157; F17C2205/0161; F17C2205/03; F17C2205/0302; F17C2205/0323; F17C2205/0335; F17C2221/00; F17C2221/01; F17C2221/011; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161; F17C2223/03; F17C2223/033; F17C2225/00; F17C2225/01; F17C2225/0107; F17C2225/0123; F17C2227/00; F17C2227/01; F17C2227/0121; F17C2227/0128; F17C2227/0135; F17C2227/03; F17C2227/0302; F17C2227/0367; F17C2227/0388; F17C2227/039; F17C2227/0393; F17C2227/04; F17C2227/043; F17C2250/00; F17C2250/01; F17C2250/04; F17C2250/0404; F17C2250/0408; F17C2250/0426; F17C2250/0443; F17C2250/07; F17C2250/072; F17C2265/00; F17C2265/06; F17C2270/00; F17C2270/01; F17C2270/0165; F17C2270/0168; F17C2270/0171; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3115; Y10T137/3127; Y10T137/313; Y10T137/6416; Y10T137/6552
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1939-04-14 | 1939-10-14 | 1940-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-04-14 | 1943-10-14 | 1944-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-04-14 | 1947-10-14 | 1948-04-14 | $7700.00 | Window Closed / Lapsed |