US3900657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat resistant material
Assignee: Tokai Metals Co Ltd
•
Filing: 1972-05-05
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Granted: 1975-08-19
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Expires: 1992-05-05
Abstract
Abstract A heat resistant material comprising an aluminum foil or an aluminum alloy foil, having finely powdered aluminum adhering to one or both sides of said foil.
Inventors
- 👤 Ryozo Nakayama
- 👤 Sigeru Itakura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:34
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/14; B05D5/00; E; E04; E04B; E04B1/00; E04B1/62; E04B1/92; E04B1/94; F; F16; F16L; F16L59/00; F16L59/02; F16L59/08; B05D2202/00; B05D2202/20; B05D2202/25; B05D2601/00; B05D2601/20; B05D2601/28; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/24975; Y10T428/25; Y10T428/256; Y10T428/31504; Y10T428/31652; Y10T428/31663; Y10T428/31678; Y10T428/31681; Y10T428/31714
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
38 words
A HEAT RESISTANT MATERIAL, WHICH CONSISTS OF AN ALUMINUM OR ALUMINUM ALLOY FOIL OF A THICKNESS TO 0.02MM HAVIN FINELY POWDERED ALUMINUM ADHERENTLY BOUND TO BOTH SIDE SURFACES THEREOF TO A THICKNESS OF NO MORE THAN 2 MICRONS.
Claim 2
Dependent Claim
38 words
A HEAT RESISTANT MATERIAL, WHICH CONSISTS OF AN ALUMINUM OR ALUMINUM ALLOY FOIL OF A THICKNESS TO 0.02MM HAVIN FINELY POWDERED ALUMINUM ADHERENTLY BOUND TO BOTH SIDE SURFACES THEREOF TO A THICKNESS OF NO MORE THAN 2 MICRONS.
Claim 3
Dependent Claim
16 words
The heat resistant material of claim 1, wherein said powdered aluminum is admixed with a binder.
Claim 4
Dependent Claim
30 words
The heat resistant material of claim 2, wherein said binder is selected from the group consisting of silicone resin varnish, alkyd resin varnish, spar varnish and butyl titanite resin varnish.
Claim 5
Dependent Claim
19 words
The heat resistant material of claim 1 wherein said powdered aluminum has a particle size range of 5-200 microns.
Claim 6
Dependent Claim
25 words
The heat resistant material of claim 3 which contains twelve parts finely powdered aluminum, 32 parts of silicone and varnish and 4 parts of xyloyl.
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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) | 1978-08-18 | 1979-02-17 | 1979-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-18 | 1983-02-17 | 1983-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-18 | 1987-02-17 | 1987-08-19 | $7700.00 | Window Closed / Lapsed |