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Patent US2580649A successfully refreshed from Google Patents.
US2580649A
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Liquefied gas discharge pump
Assignee: Union Carbide Corp
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Filing: 1948-01-08
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Granted: 1952-01-01
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Expires: 1968-01-08
Abstract
No abstract record available.
Inventors
- 👤 Bludeau Robert Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:08
CPC Classifications
F; F17; F17C; F17C9/00; F17C9/02; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0119; F17C2201/0142; F17C2203/00; F17C2203/06; F17C2203/0602; F17C2203/0612; F17C2203/0626; F17C2203/0631; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0311; F17C2205/0314; F17C2205/0323; F17C2205/0332; F17C2205/0335; F17C2205/0382; F17C2205/0385; F17C2205/0388; F17C2205/0394; F17C2221/00; F17C2221/01; F17C2221/011; F17C2221/014; F17C2221/03; F17C2221/031; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161; F17C2223/03; F17C2223/033; F17C2223/04; F17C2223/042; F17C2223/046; F17C2223/047; F17C2227/00; F17C2227/01; F17C2227/0107; F17C2227/0128; F17C2227/0135; F17C2227/0142; F17C2227/04; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3115; Y10T137/3127; Y10T137/313; Y10T137/6416; Y10T137/6525
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-31 | 1955-07-02 | 1956-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-31 | 1959-07-02 | 1960-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-31 | 1963-07-02 | 1964-01-01 | $7700.00 | Window Closed / Lapsed |