Patent US1693889A successfully refreshed from Google Patents.
Patent US3011674A successfully refreshed from Google Patents.
US3011674A
Expired / Lapsed
US
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Double shell pressure tank
Assignee: Pittsburgh Des Moines Steel Co
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Filing: 1957-11-12
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Granted: 1961-12-05
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Expires: 1977-11-12
Abstract
No abstract record available.
Inventors
- 👤 James O Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:28
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/08; F17C13/083; F17C1/00; F17C1/12; F17C2201/00; F17C2201/01; F17C2201/0128; F17C2201/05; F17C2201/052; F17C2203/00; F17C2203/01; F17C2203/014; F17C2203/015; F17C2203/016; F17C2203/03; F17C2203/0304; F17C2203/0337; F17C2203/0341; F17C2203/06; F17C2203/0602; F17C2203/0612; F17C2203/0626; F17C2203/0629; F17C2203/0634; F17C2203/0636; F17C2203/0639; F17C2203/0643; F17C2203/0648; F17C2205/00; F17C2205/01; F17C2205/0153; F17C2205/018; F17C2205/0192; F17C2205/03; F17C2205/0302; F17C2205/0305; F17C2205/0323; F17C2205/0332; F17C2205/0352; F17C2205/0355; F17C2205/0379; F17C2205/0388; F17C2205/0394; F17C2209/00; F17C2209/22; F17C2209/221; F17C2209/23; F17C2209/232; F17C2209/238; F17C2221/00; F17C2221/01; F17C2221/011; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161; F17C2223/03; F17C2223/033; F17C2223/04; F17C2223/042; F17C2223/046; F17C2225/00; F17C2225/01; F17C2225/0146; F17C2225/0153; F17C2225/0161; F17C2225/03; F17C2225/033; F17C2225/04; F17C2225/042; F17C2225/046; F17C2260/00; F17C2260/01; F17C2270/00; F17C2270/01; F17C2270/0134; Y; Y10; Y10S; Y10S220/00; Y10S220/901; Y10S220/917
Claims Analysis
Total Claims: 0
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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) | 1964-12-04 | 1965-06-05 | 1965-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-04 | 1969-06-05 | 1969-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-04 | 1973-06-05 | 1973-12-05 | $7700.00 | Window Closed / Lapsed |