Patent US2484762A successfully refreshed from Google Patents.
Patent US2312420A successfully refreshed from Google Patents.
US2312420A
Expired / Lapsed
US
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High pressure container
Assignee: Individual
•
Filing: 1938-12-10
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Granted: 1943-03-02
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Expires: 1958-12-10
Abstract
No abstract record available.
Inventors
- 👤 Kopf Emil
- 👤 Wasmuht Roland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:10
CPC Classifications
F; F17; F17C; F17C1/00; F17C1/02; F17C1/04; F17C1/06; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0109; F17C2201/0123; F17C2201/05; F17C2201/054; F17C2203/00; F17C2203/01; F17C2203/011; F17C2203/012; F17C2203/06; F17C2203/0602; F17C2203/0604; F17C2203/0609; F17C2203/0612; F17C2203/0614; F17C2203/0624; F17C2203/0634; F17C2203/0636; F17C2209/00; F17C2209/22; F17C2209/221; F17C2209/224; F17C2223/00; F17C2223/03; F17C2223/036; F17C2260/00; F17C2260/01; F17C2260/011
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) | 1946-03-01 | 1946-08-31 | 1947-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-03-01 | 1950-08-31 | 1951-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-03-01 | 1954-08-31 | 1955-03-02 | $7700.00 | Window Closed / Lapsed |