Patent US3547047A successfully refreshed from Google Patents.
US3547047A
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Insulated railway tank car and method of forming same
Assignee: ACF Industries Inc
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Filing: 1968-10-31
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Granted: 1970-12-15
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Expires: 1988-10-31
Abstract
No abstract record available.
Inventors
- 👤 Robert F Needham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:01
CPC Classifications
F; F17; F17C; F17C3/00; F17C3/02; F17C3/04; B; B65; B65D; B65D88/00; B65D88/74; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0109; F17C2201/0147; F17C2201/0166; F17C2201/03; F17C2201/035; F17C2203/00; F17C2203/03; F17C2203/0304; F17C2203/0329; F17C2203/0333; F17C2203/06; F17C2203/0602; F17C2203/0612; F17C2203/0626; F17C2203/0629; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0323; F17C2205/0379; F17C2205/0388; F17C2205/0394; F17C2209/00; F17C2209/22; F17C2209/227; F17C2209/23; F17C2209/238; F17C2270/00; F17C2270/01; F17C2270/0165; F17C2270/0168; F17C2270/0173; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49879
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |