Patent US2995268A successfully refreshed from Google Patents.
US2995268A
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Insulated tank construction
Assignee: Boeing Co
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Filing: 1958-09-05
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Granted: 1961-08-08
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Expires: 1978-09-05
Abstract
No abstract record available.
Inventors
- 👤 David D Kurtovich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:20
CPC Classifications
F; F17; F17C; F17C3/00; F17C3/02; F17C3/10; B; B64; B64D; B64D37/00; B64D37/02; B64D37/06; F17C2201/00; F17C2201/01; F17C2201/0128; F17C2203/00; F17C2203/01; F17C2203/011; F17C2203/012; F17C2203/06; F17C2203/0602; F17C2203/0604; F17C2203/0612; F17C2203/0626; F17C2203/0629; F17C2205/00; F17C2205/01; F17C2205/0153; F17C2205/0176; F17C2221/00; F17C2221/03; F17C2221/032; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/03; F17C2223/033; F17C2227/00; F17C2227/01; F17C2227/0128; F17C2227/0135; F17C2227/0171; F17C2227/0178; F17C2260/00; F17C2260/01; F17C2260/012; F17C2260/03; F17C2260/031; F17C2260/033; F17C2260/04; F17C2260/042; F17C2270/00; F17C2270/01; F17C2270/0186; F17C2270/0189; F17C2270/0197; 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) | 1964-08-07 | 1965-02-06 | 1965-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-07 | 1969-02-06 | 1969-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-07 | 1973-02-06 | 1973-08-08 | $7700.00 | Window Closed / Lapsed |