Patent US3471349A successfully refreshed from Google Patents.
US3471349A
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Method of constructing a positive expulsion tank
Assignee: Bendix Corp
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Filing: 1966-09-06
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Granted: 1969-10-07
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Expires: 1986-09-06
Abstract
No abstract record available.
Inventors
- 👤 Edward A Cohen
- 👤 Robert H Bosworth
- 👤 Robert E Feucht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:34
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/42; F02K9/60; F02K9/605; B; B05; B05B; B05B9/00; B05B9/03; B05B9/04; B05B9/047; F17; F17C; F17C1/00; F17C1/10; F17C2201/00; F17C2201/01; F17C2201/0128; F17C2201/0176; F17C2201/018; F17C2203/00; F17C2203/06; F17C2203/0634; F17C2203/0636; F17C2203/0639; F17C2203/0643; F17C2203/0658; F17C2203/066; F17C2209/00; F17C2209/22; F17C2209/221; F17C2209/227; F17C2209/23; F17C2209/232; F17C2221/00; F17C2221/08; F17C2260/00; F17C2260/01; F17C2260/013; F17C2270/00; F17C2270/01; F17C2270/0186; F17C2270/0194; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49877; Y10T29/49885; Y10T29/49893
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2731297A
Cited
US2833667A
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US2984392A
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US3037497A
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US3067078A
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US3229014A
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US3241722A
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US3347966A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |