US2920784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid storage vessel
Assignee: Chicago Bridge and Iron Co
•
Filing: 1955-12-01
•
Granted: 1960-01-12
•
Expires: 1975-12-01
Abstract
No abstract record available.
Inventors
- 👤 Harry C Boardman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:59
CPC Classifications
F; F17; F17C; F17C1/00; F17C1/02; F17C1/08; F17C2201/00; F17C2201/01; F17C2201/0147; F17C2201/0152; F17C2201/0166; F17C2201/0171; F17C2201/03; F17C2201/032; F17C2201/035; F17C2201/05; F17C2201/052; F17C2203/00; F17C2203/01; F17C2203/011; F17C2203/012; F17C2203/013; F17C2203/06; F17C2203/0602; F17C2203/0612; F17C2203/0614; F17C2203/0617; F17C2203/0634; F17C2203/0636; F17C2205/00; F17C2205/01; F17C2205/0153; F17C2205/018; F17C2209/00; F17C2209/22; F17C2209/221; F17C2209/228; F17C2223/00; F17C2223/01; F17C2223/0107; F17C2223/0123; F17C2223/013; F17C2223/0146; F17C2223/0153; F17C2223/03; F17C2223/033; F17C2223/035; F17C2260/00; F17C2260/01; F17C2260/012; F17C2260/013; F17C2260/017; F17C2270/00; F17C2270/01; F17C2270/0134
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1241971A
Cited
US1622787A
Cited
US1651892A
Cited
US2106494A
Cited
US1966244A
Cited
US2171973A
Cited
US2341044A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |