Patent US2947438A successfully refreshed from Google Patents.
US2947438A
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Internal insulation structure for use with liquefied petroleum products
Assignee: Texaco Inc
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Filing: 1957-12-19
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Granted: 1960-08-02
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Expires: 1977-12-19
Abstract
No abstract record available.
Inventors
- 👤 Frank A Clauson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:51
CPC Classifications
F; F16; F16L; F16L59/00; E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/76; F17; F17C; F17C3/00; F17C3/02; F17C3/04; F17C3/06; F17C2203/00; F17C2203/03; F17C2203/0304; F17C2203/0308; F17C2203/0316; F17C2203/0358; F17C2203/06; F17C2203/0634; F17C2203/0636; F17C2203/0639; F17C2221/00; F17C2221/03; F17C2221/032; F17C2221/035; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/03; F17C2223/033; F17C2270/00; F17C2270/01; F17C2270/0102; F17C2270/0105; F17C2270/0107; Y; Y10; Y10S; Y10S220/00; Y10S220/901
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2859895A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |