Patent US3761060A successfully refreshed from Google Patents.
Patent US2558580A successfully refreshed from Google Patents.
US2558580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underground storage tank
Assignee: Individual
•
Filing: 1945-01-23
•
Granted: 1951-06-26
•
Expires: 1965-01-23
Abstract
No abstract record available.
Inventors
- 👤 Edmund S Pomykala
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:32
CPC Classifications
E; E04; E04H; E04H7/00; E04H7/02; E04H7/18; E04H7/20; F; F17; F17C; F17C3/00; F17C3/005; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0109; F17C2201/0119; F17C2201/03; F17C2201/032; F17C2203/00; F17C2203/01; F17C2203/011; F17C2203/013; F17C2203/06; F17C2203/0602; F17C2203/0604; F17C2203/0634; F17C2203/0636; F17C2203/0639; F17C2203/0678; F17C2203/068; F17C2203/0695; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0379; F17C2221/00; F17C2221/03; F17C2221/032; F17C2221/035; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/03; F17C2223/033; F17C2227/00; F17C2227/01; F17C2227/0128; F17C2227/0135; F17C2270/00; F17C2270/01; F17C2270/0142; F17C2270/0144; F17C2270/0147; F17C2270/0157; F17C2270/016
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1109214A
Cited
US1497142A
Cited
US2058038A
Cited
US2080879A
Cited
US2326010A
Cited
US2355947A
Cited
US2382171A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-25 | 1954-12-25 | 1955-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-25 | 1958-12-25 | 1959-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-25 | 1962-12-25 | 1963-06-26 | $7700.00 | Window Closed / Lapsed |