US2729357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum jacketed container
Assignee: CAMBRIDGE Corp
•
Filing: 1953-05-06
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Granted: 1956-01-03
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Expires: 1973-05-06
Abstract
No abstract record available.
Inventors
- 👤 Jr Walter C Nason
- 👤 Howard O Mcmahon
- 👤 William R Morgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:23
CPC Classifications
F; F17; F17C; F17C3/00; F17C3/02; F17C3/08; A; A47; A47J; A47J41/00; A47J41/02; A47J41/022; A47J41/028; F17C2201/00; F17C2201/01; F17C2201/0128; F17C2203/00; F17C2203/01; F17C2203/014; F17C2203/018; F17C2203/03; F17C2203/0391; F17C2203/06; F17C2203/0602; F17C2203/0612; F17C2203/0626; F17C2203/0629; F17C2203/0634; F17C2203/0636; F17C2205/00; F17C2205/01; F17C2205/0153; F17C2205/0196; F17C2205/03; F17C2205/0302; F17C2205/0323; F17C2205/0332; F17C2209/00; F17C2209/22; F17C2209/221; F17C2221/00; F17C2221/01; F17C2221/011; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161; F17C2223/03; F17C2223/033; F17C2250/00; F17C2250/04; F17C2250/0404; F17C2250/0408; F17C2250/0486; F17C2250/0491; F17C2260/00; F17C2260/01; F17C2260/011; F17C2260/03; F17C2260/031; F17C2270/00; F17C2270/01; F17C2270/0186; F17C2270/0189
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US797577A
Cited
US2147886A
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US2399539A
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US2334002A
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US2390353A
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US2523238A
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US2528780A
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US2534929A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-02 | 1959-07-04 | 1960-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-02 | 1963-07-04 | 1964-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-02 | 1967-07-04 | 1968-01-03 | $7700.00 | Window Closed / Lapsed |