US3114469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for improving thermal insulation space
Assignee: Union Carbide Corp
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Filing: 1963-02-20
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Granted: 1963-12-17
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Expires: 1983-02-20
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Francis
- 👤 Cheung Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:45
CPC Classifications
H; H01; H01J; H01J7/00; H01J7/14; H01J7/18; F; F17; F17C; F17C3/00; F17C3/02; F17C3/08; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/0109; F17C2201/0114; F17C2201/03; F17C2201/032; F17C2203/00; F17C2203/03; F17C2203/0304; F17C2203/0308; F17C2203/032; F17C2203/0325; F17C2203/0337; F17C2203/0345; F17C2203/0391; F17C2203/0395; F17C2203/06; F17C2203/0602; F17C2203/0612; F17C2203/0626; F17C2203/0629; F17C2203/0634; F17C2203/0636; F17C2203/0639; F17C2203/0643; F17C2221/00; F17C2221/01; F17C2221/011; F17C2221/012; F17C2221/014; F17C2221/016; F17C2221/017; F17C2260/00; F17C2260/03; F17C2260/031; F17C2260/033; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A THERMAL INSULATING STRUCTURE COMPRISING GAS-TIGHT WALLS ENCLOSING AN EVACUABLE SPACE; MEANS FOR DRAWING A VACUUM IN SUCH SPACE; A CAPSULE SEALED FROM THE ATMOSPHERE AND AN ACTIVE METAL POWDER GETTER MATERIAL BEING ACTIVE AT AMBIENT TEMPERATURE AND HELD IN SAID CAPSULE; GAS COMMUNICATION MEANS BETWEEN SAID CAPSULE AND THE GAS-EVACUATED SPACE SO AS TO PERMIT COMBINATION BETWEEN THE METAL GETTER AND REACTIVE GASES ACCUMULATING IN SUCH SPACE.
Claim 2
Dependent Claim
68 words
A THERMAL INSULATING STRUCTURE COMPRISING GAS-TIGHT WALLS ENCLOSING AN EVACUABLE SPACE; MEANS FOR DRAWING A VACUUM IN SUCH SPACE; A CAPSULE SEALED FROM THE ATMOSPHERE AND AN ACTIVE METAL POWDER GETTER MATERIAL BEING ACTIVE AT AMBIENT TEMPERATURE AND HELD IN SAID CAPSULE; GAS COMMUNICATION MEANS BETWEEN SAID CAPSULE AND THE GAS-EVACUATED SPACE SO AS TO PERMIT COMBINATION BETWEEN THE METAL GETTER AND REACTIVE GASES ACCUMULATING IN SUCH SPACE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-16 | 1967-06-17 | 1967-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-16 | 1971-06-17 | 1971-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-16 | 1975-06-17 | 1975-12-17 | $7700.00 | Window Closed / Lapsed |