Patent US5366242A successfully refreshed from Google Patents.
Patent US2844271A successfully refreshed from Google Patents.
US2844271A
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US
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Pressure tank
Assignee: ConocoPhillips Co
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Filing: 1955-03-14
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Granted: 1958-07-22
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Expires: 1975-03-14
Abstract
No abstract record available.
Inventors
- 👤 Edgar A Shelton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:45
CPC Classifications
F; F17; F17C; F17C1/00; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0109; F17C2201/0133; F17C2201/0147; F17C2201/0166; F17C2201/0171; F17C2201/03; F17C2201/032; F17C2201/05; F17C2201/056; F17C2203/00; F17C2203/06; F17C2203/0602; F17C2203/0612; F17C2203/0614; F17C2203/0617; F17C2203/0626; F17C2203/0629; F17C2205/00; F17C2205/01; F17C2205/0153; F17C2205/018; F17C2205/03; F17C2205/0302; F17C2205/0305; F17C2205/0323; F17C2205/0388; F17C2205/0394; F17C2205/0397; F17C2209/00; F17C2209/21; F17C2209/2154; F17C2209/22; F17C2209/221; F17C2209/23; F17C2209/232; F17C2221/00; F17C2221/01; F17C2221/014; F17C2223/00; F17C2223/03; F17C2223/036; F17C2227/00; F17C2227/03; F17C2227/0367; F17C2227/0369; F17C2227/0376; F17C2227/0381; F17C2250/00; F17C2250/04; F17C2250/0404; F17C2250/043; F17C2250/0434; F17C2250/0486; F17C2250/0491; F17C2260/00; F17C2260/01; F17C2260/011; F17C2260/03; F17C2260/035; F17C2260/036; F17C2260/038; F17C2260/04; F17C2260/042; F17C2270/00; F17C2270/05; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49394; Y10T29/49826; Y10T29/49879
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE176591C
Cited
FR430521A
Cited
US2000780A
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US2314442A
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FR1007254A
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US2631015A
Cited
US2718014A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |