Patent US3209192A successfully refreshed from Google Patents.
US3209192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Decorative electric lamp with specular coating
Assignee: Westinghouse Electric Corp
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Filing: 1960-12-29
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Granted: 1965-09-28
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Expires: 1980-12-29
Abstract
No abstract record available.
Inventors
- 👤 Walter J Decker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:17
CPC Classifications
H; H01; H01K; H01K7/00; H01K7/06; H01K1/00; H01K1/28; H01K1/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A DECORATIVE ELECTRIC LAMP COMPRISING AN ENVELOPE OF LIGHT-TRANSMITTING MATERIAL, A LIGHT SOURCE SEALED WITHIN SAID ENVELOPE, AND A SPECULAR THIN INFRARED-TRANSMITTING COATING ON AT LEAST A PORTION OF SAID ENVELOPE, SAID COATINT BEING OF SUCH THICKNESS THAT IT REFLECTS INCIDENT LIGHT ORIGINATING OUTSIDE SAID LAMP BUT IS PERMEABLE TO LIGHT GENERATED BY SAID LIGHT SOURCE.
Claim 2
Dependent Claim
56 words
A DECORATIVE ELECTRIC LAMP COMPRISING AN ENVELOPE OF LIGHT-TRANSMITTING MATERIAL, A LIGHT SOURCE SEALED WITHIN SAID ENVELOPE, AND A SPECULAR THIN INFRARED-TRANSMITTING COATING ON AT LEAST A PORTION OF SAID ENVELOPE, SAID COATINT BEING OF SUCH THICKNESS THAT IT REFLECTS INCIDENT LIGHT ORIGINATING OUTSIDE SAID LAMP BUT IS PERMEABLE TO LIGHT GENERATED BY SAID LIGHT SOURCE.
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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) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |