US3265236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal insulation
Assignee: Union Carbide Corp
•
Filing: 1962-05-10
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Granted: 1966-08-09
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Expires: 1982-05-10
Abstract
No abstract record available.
Inventors
- 👤 Gibbon Norman
- 👤 John A Paivanas
- 👤 David I-J Wang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:45
CPC Classifications
A; A47; A47J; A47J41/00; A47J41/0055; A47J41/02; A47J41/022
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
153 words
AN APPARATUS PROVIDED WITH A GAS EVACUATED INSULAING SPACE CONTINGUOUSLY ASSOCIATED WITH A HEAT TRANSFERABLE CONTAINER AND BEING ENCLOSED BY RIGID, SELF-SUPPORTING WALLS; A HEAT INSULATIVE AND RADIATION-IMPERVIOUS COMPOSITE FLEXIBLE MATERIAL COMPRISING A MULTIPLICITY OF THIN, FLEXIBLE, RADIANT HEAT BARRIER LAYERS OF THICKNESS LESS THAN 0.2 MM. IN SAID INSULATING SPACE DISPOSED IN SPACED RELATION TO EACH OTHER FOR REDUCING THE TRANSMISSION OF RADIANT HEAT ACROSS SAID SPACE, AND A MULTIPLICITY OF LOW HEAT CONDUCTIVE FIBROUS SHEET MATERIAL LAYERS COMPOSED OF FIBERS HAVING DIAMETERS LESS THAN 15 MICRONS, BEING COEXTENSIVE WITH SUCH RADIATION BARRIER LAYERS AND DISPOSED IN CONTIGUOUS ADJACENCY BETWEEN AND IN ALTERNATING SEQUENCE WITH SAID BARRIERS BEING CONTIGUOUSLY ASSOCIATED WITH SAID HEAT TRANSFERABLE CONTAINER FOR SEPARATING AND SUPPORTING SAID BARRIERS SPACED FROM EACH OTHER, THE RADIANT HEAT BARRIERLOW CONDUCTIVE FIBROUS SHEET COMPOSITE INSULATING MATERIAL BEING ASSEMBLED SUFFICIENTLY CLOSELY TO PROVIDE AT LEAST 4 FIBROUS SHEET LAYERS PER INCH OF COMPOSITE INSULATION,
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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) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |