US2250250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Symmetrically shaped and easily duplicated pressure tank
Assignee: NEW YORK TANK CO
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Filing: 1938-09-22
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Granted: 1941-07-22
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Expires: 1958-09-22
Abstract
No abstract record available.
Inventors
- 👤 Stephen H Brooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:36
CPC Classifications
F; F17; F17C; F17C1/00; F17C1/02; F17C2201/00; F17C2201/01; F17C2201/0133; F17C2201/03; F17C2201/032; F17C2201/05; F17C2201/052; F17C2201/054; F17C2203/00; F17C2203/01; F17C2203/011; F17C2203/012; F17C2203/013; F17C2203/03; F17C2203/0304; F17C2203/06; F17C2203/0602; F17C2203/0612; F17C2203/0614; F17C2203/0617; F17C2203/0634; F17C2203/0636; F17C2203/0639; F17C2205/00; F17C2205/01; F17C2205/0153; F17C2205/018; F17C2209/00; F17C2209/22; F17C2209/221; F17C2223/00; F17C2223/01; F17C2223/0107; F17C2223/0123; F17C2223/03; F17C2223/033; F17C2223/038; F17C2260/00; F17C2260/01; F17C2260/011; F17C2260/02; F17C2260/021; F17C2265/00; F17C2265/03; F17C2265/032; F17C2270/00; F17C2270/01; F17C2270/0134; F17C2270/05
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) | 1944-07-21 | 1945-01-20 | 1945-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-07-21 | 1949-01-20 | 1949-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-07-21 | 1953-01-20 | 1953-07-22 | $7700.00 | Window Closed / Lapsed |