US4426570A
Expired / Lapsed
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Infrared radiative body and a method for making the same
Assignee: Panasonic Holdings Corp
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Filing: 1981-06-19
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Granted: 1984-01-17
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Expires: 2001-06-19
Abstract
Abstract An infrared radiative body which is composed of a transparent refractory body and a refractory film thereon which absorbs visible and near-infrared radiation suitable for application in an infrared radiating apparatus such as a stove or oven, and a method for making the same.
Inventors
- 👤 Tadashi Hikino
- 👤 Ikuo Kobayashi
- 👤 Takeshi Nagai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:19
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/10; H05B3/40; H05B3/42; H05B3/44
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
40 words
An infrared radiative body which is composed of transparent refractory body and a refractory film thereon which absorbs visible and near-infrared radiation and transmits infrared radiation of wavelength 3˜4 microns and the thickness of which is 0.02 to 0.5 microns.
Claim 2
Dependent Claim
40 words
An infrared radiative body which is composed of transparent refractory body and a refractory film thereon which absorbs visible and near-infrared radiation and transmits infrared radiation of wavelength 3˜4 microns and the thickness of which is 0.02 to 0.5 microns.
Claim 3
Dependent Claim
52 words
The infrared radiative body according to claim 1 wherein the refractory film which absorbs visible and near-infrared radiation and transmits infrared radiation of wavelength 3˜4 microns, is an oxide selected from the group consisting of cobalt, copper, iron, nickel, manganese, molybdenum, tungsten, lanthanum, antimony, bismuth, vanadium and zirconium or an aluminum titanate.
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) | 1987-01-16 | 1987-07-18 | 1988-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-16 | 1991-07-18 | 1992-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-16 | 1995-07-18 | 1996-01-17 | $7700.00 | Window Closed / Lapsed |