Patent US2902335A successfully refreshed from Google Patents.
Patent US3177345A successfully refreshed from Google Patents.
US3177345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lighting and heating device in the form of a panel
Assignee: AGC Glass Europe SA
•
Filing: 1962-05-01
•
Granted: 1965-04-06
•
Expires: 1982-05-01
Abstract
No abstract record available.
Inventors
- 👤 Plumat Emile
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:54
CPC Classifications
F; F24; F24C; F24C7/00; F24C7/08; F24C7/081; H; H05; H05B; H05B33/00; H05B33/02; H05B33/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A LIGHTING AND HEATING DEVICE COMPRISING TWO SPACED SHEETS HAVING THEIR INTERIOR SURFACES DISPOSED IN OPPOSED SPACED RELATION, SPACING MEANS INCLUDING MEANS ARRANGED AROUND THE PERIPHERAL EDGE PORTIONS OF SAID SHEETS FOR FORMING WITH SAID SHEETS A HERMETICALLY SEALED PANEL CAPABLE OF CONTAINING IN THE CHAMEBR DEFINED BY SAID SHEETS AND SPACING MEANS, A GAS UNDER A PRESSURE LOWER THAN ATMOSPHERIC PRESSURE, THE INTERIOR OPPOSED SURFACES OF SAID SHEETS BEING ELECTRICALLY CONDUCTIVE AND CAPABLE OF PASSING ELECTRICAL DISCHARGES THEREBETWEEN TO PRODUCE LIGHT ENERGY OVER THE AREA ENCOMPASSED BY SAID SPACING MEANS, AT LEAST ONE OF SAID SHEETS BEING CAPABLE OF TRANSMITTING
Claim 2
Dependent Claim
101 words
A LIGHTING AND HEATING DEVICE COMPRISING TWO SPACED SHEETS HAVING THEIR INTERIOR SURFACES DISPOSED IN OPPOSED SPACED RELATION, SPACING MEANS INCLUDING MEANS ARRANGED AROUND THE PERIPHERAL EDGE PORTIONS OF SAID SHEETS FOR FORMING WITH SAID SHEETS A HERMETICALLY SEALED PANEL CAPABLE OF CONTAINING IN THE CHAMEBR DEFINED BY SAID SHEETS AND SPACING MEANS, A GAS UNDER A PRESSURE LOWER THAN ATMOSPHERIC PRESSURE, THE INTERIOR OPPOSED SURFACES OF SAID SHEETS BEING ELECTRICALLY CONDUCTIVE AND CAPABLE OF PASSING ELECTRICAL DISCHARGES THEREBETWEEN TO PRODUCE LIGHT ENERGY OVER THE AREA ENCOMPASSED BY SAID SPACING MEANS, AT LEAST ONE OF SAID SHEETS BEING CAPABLE OF TRANSMITTING
References Cited (Backward Citations)
US1724298A
Cited
US2246339A
Cited
US2446712A
Cited
US2497507A
Cited
US2561836A
Cited
US2625640A
Cited
US2739083A
Cited
US2791723A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |