Patent US3206631A successfully refreshed from Google Patents.
US3206631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Incandescent radiator
Assignee: US Philips Corp
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Filing: 1961-01-10
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Granted: 1965-09-14
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Expires: 1981-01-10
Abstract
No abstract record available.
Inventors
- 👤 Kauer Erhard
- 👤 Horster Horst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:35
CPC Classifications
H; H01; H01K; H01K1/00; H01K1/02; H01K1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A SELECTIVE RADIATOR HAVING AN ICANDESCENT MEMBER RADIATING PRINCIPALLY IN THE VISIBLE SPECTRUM AND COMPOSED OF A NON-METALLIC CRYSTALLINE MATERIAL, AND MEANS TO DIRECTLY HEAT SAID MEMBER ELECTRICALLY, SAID MEMBER HAVING A THICKNESS D IN MILLMETERS AT LEAST IN ONE DIMENSION:
Claim 2
Dependent Claim
41 words
A SELECTIVE RADIATOR HAVING AN ICANDESCENT MEMBER RADIATING PRINCIPALLY IN THE VISIBLE SPECTRUM AND COMPOSED OF A NON-METALLIC CRYSTALLINE MATERIAL, AND MEANS TO DIRECTLY HEAT SAID MEMBER ELECTRICALLY, SAID MEMBER HAVING A THICKNESS D IN MILLMETERS AT LEAST IN ONE DIMENSION:
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) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |