US2776069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container for liquefied gas
Assignee: Arthur D Little Inc
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Filing: 1955-06-30
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Granted: 1957-01-01
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Expires: 1975-06-30
Abstract
No abstract record available.
Inventors
- 👤 Francis J Zimmermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:03
CPC Classifications
F; F17; F17C; F17C3/00; F17C3/02; F17C3/08; F17C2201/00; F17C2201/01; F17C2201/0128; F17C2201/03; F17C2201/032; F17C2201/05; F17C2201/054; F17C2203/00; F17C2203/01; F17C2203/014; F17C2203/018; F17C2203/03; F17C2203/0391; F17C2203/06; F17C2203/0602; F17C2203/0607; F17C2203/0612; F17C2203/0626; F17C2203/0629; F17C2203/0634; F17C2203/0636; F17C2203/0639; F17C2203/0643; F17C2203/0658; F17C2203/066; F17C2209/00; F17C2209/23; F17C2209/232; F17C2221/00; F17C2221/01; F17C2221/011; F17C2221/012; F17C2221/014; F17C2221/016; F17C2221/017; F17C2221/03; F17C2221/031; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161; F17C2223/03; F17C2223/033; F17C2260/00; F17C2260/03; F17C2260/031; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
WALLS ENCLOSING AN EVACUATED AREA, THE SURFACES OF SAID WALLS FACING EACH OTHER HAVING A BRILLIANT UNBUFFED SILVER FINISH, SAID SILVER FINISH HAVING BEEN DEPOSITED BY ELECTROPLATING FROM A POTASSIUM CYANIDE BATH CONTAINING ORGANIC ADDITIVES WHICH REDUCE THE PARTICLE SIZE OF THE SILVER IN SAID SILVER FINISH AND WHICH CONTRINUTE A POSITIVE BRIGHTENING EFFECT.
Claim 2
Dependent Claim
54 words
WALLS ENCLOSING AN EVACUATED AREA, THE SURFACES OF SAID WALLS FACING EACH OTHER HAVING A BRILLIANT UNBUFFED SILVER FINISH, SAID SILVER FINISH HAVING BEEN DEPOSITED BY ELECTROPLATING FROM A POTASSIUM CYANIDE BATH CONTAINING ORGANIC ADDITIVES WHICH REDUCE THE PARTICLE SIZE OF THE SILVER IN SAID SILVER FINISH AND WHICH CONTRINUTE A POSITIVE BRIGHTENING EFFECT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-01 | 1960-07-02 | 1961-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-01 | 1964-07-02 | 1965-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-01 | 1968-07-02 | 1969-01-01 | $7700.00 | Window Closed / Lapsed |