US2531742A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underground storage tank
Assignee: Individual
•
Filing: 1945-04-23
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Granted: 1950-11-28
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Expires: 1965-04-23
Abstract
No abstract record available.
Inventors
- 👤 Edmund S Pomykala
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:26
CPC Classifications
F; F17; F17C; F17C3/00; F17C3/005; E; E04; E04H; E04H7/00; E04H7/02; E04H7/18; E04H7/20; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0119; F17C2201/03; F17C2201/035; F17C2201/05; F17C2201/052; F17C2203/00; F17C2203/01; F17C2203/011; F17C2203/013; F17C2203/06; F17C2203/0602; F17C2203/0604; F17C2203/0612; F17C2203/0626; F17C2203/0629; F17C2203/0634; F17C2203/0636; F17C2203/0639; F17C2203/0678; F17C2203/068; F17C2203/0695; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0379; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/03; F17C2223/033; F17C2227/00; F17C2227/01; F17C2227/0128; F17C2227/0135; F17C2260/00; F17C2260/01; F17C2260/011; F17C2270/00; F17C2270/01; F17C2270/0142; F17C2270/0144; F17C2270/0147; F17C2270/0157; F17C2270/016; Y; Y10; Y10S; Y10S220/00; Y10S220/901
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) | 1953-11-27 | 1954-05-29 | 1954-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-27 | 1958-05-29 | 1958-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-27 | 1962-05-29 | 1962-11-28 | $7700.00 | Window Closed / Lapsed |