Patent US491779A successfully refreshed from Google Patents.
Patent US2372800A successfully refreshed from Google Patents.
US2372800A
Expired / Lapsed
US
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High-pressure vessel
Assignee: PRODUCTS DEV Inc
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Filing: 1942-08-21
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Granted: 1945-04-03
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Expires: 1962-08-21
Abstract
No abstract record available.
Inventors
- 👤 Harry C Stearns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:18
CPC Classifications
F; F17; F17C; F17C1/00; F17C1/02; F17C1/08; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0109; F17C2201/0123; F17C2201/05; F17C2201/056; F17C2203/00; F17C2203/06; F17C2203/0602; F17C2203/0612; F17C2203/0614; F17C2203/0621; F17C2203/0634; F17C2203/0636; F17C2203/0639; F17C2203/0643; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0323; F17C2205/0388; F17C2205/0394; F17C2209/00; F17C2209/22; F17C2209/221; F17C2209/224; F17C2209/23; F17C2209/232; F17C2221/00; F17C2221/01; F17C2221/011; F17C2223/00; F17C2223/01; F17C2223/0107; F17C2223/0123; F17C2223/03; F17C2223/036; F17C2260/00; F17C2260/01; F17C2260/011; F17C2260/04; F17C2260/042; F17C2270/00; F17C2270/01; F17C2270/0186; F17C2270/0189
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) | 1948-04-02 | 1948-10-02 | 1949-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-04-02 | 1952-10-02 | 1953-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-04-02 | 1956-10-02 | 1957-04-03 | $7700.00 | Window Closed / Lapsed |