US3177334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oven door window
Assignee: General Electric Co
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Filing: 1963-03-11
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Granted: 1965-04-06
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Expires: 1983-03-11
Abstract
No abstract record available.
Inventors
- 👤 Robert A Kinkle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:35
CPC Classifications
F; F24; F24C; F24C15/00; F24C15/02; F24C15/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
AN ELECTRONIC OVEN COMPRISING METALLIC WALLS DEFINING AN OVEN CAVITY ADAPTED TO BE SUPPLIED WITH BOTH MICROWAVE AND RADIANT ENERGY, ONE OF SAID WALLS HAVING AN OPENING THEREIN, A METAL DOOR ADAPTED TO CLOSE THE OPENING, SAID DOOR COMPRISING AN OUTER PANEL AND AN INNER DOOR LINER, THE OUTER DOOR PANEL HAVING A WINDOW OPENING FOR ACCOMMODATING VIEWING WITHIN THE OVEN CAVITY, THE INNER DOOR LINER HAVING A PERFORATED PORTION OVERLYING THE WINDOW OPENING AND HAVING A SERIES OF SMALL OPENINGS CLOSELY SPACED FROM EACH OTHER TO PRECLUDE THE ESCAPE OF MICROWAVE ENERGY FROM SAID CAVITY THROUGH SAID WINDOW OPENING WITHOUT SUBSTANTIAL INTERFERENCE WITH VIEWING, A GLASS PANE SEALED OVER THE OUTERMOST SURFACE OF THE PERFORATED PORTION OF THE INNER LINER OF THE DOOR, A CONTINUOUS FRAME-LIKE SPACER MEMBER ON THE OPPOSITE SIDE OF THE INNER LINER ARRANGED AROUND THE PERIPHERY OF THE PERFORATED PORTIONS, AND SECOND PANE OF GLASS SELED ACROSS THE FACE OF THE SPACER MEMBER.
Claim 2
Dependent Claim
158 words
AN ELECTRONIC OVEN COMPRISING METALLIC WALLS DEFINING AN OVEN CAVITY ADAPTED TO BE SUPPLIED WITH BOTH MICROWAVE AND RADIANT ENERGY, ONE OF SAID WALLS HAVING AN OPENING THEREIN, A METAL DOOR ADAPTED TO CLOSE THE OPENING, SAID DOOR COMPRISING AN OUTER PANEL AND AN INNER DOOR LINER, THE OUTER DOOR PANEL HAVING A WINDOW OPENING FOR ACCOMMODATING VIEWING WITHIN THE OVEN CAVITY, THE INNER DOOR LINER HAVING A PERFORATED PORTION OVERLYING THE WINDOW OPENING AND HAVING A SERIES OF SMALL OPENINGS CLOSELY SPACED FROM EACH OTHER TO PRECLUDE THE ESCAPE OF MICROWAVE ENERGY FROM SAID CAVITY THROUGH SAID WINDOW OPENING WITHOUT SUBSTANTIAL INTERFERENCE WITH VIEWING, A GLASS PANE SEALED OVER THE OUTERMOST SURFACE OF THE PERFORATED PORTION OF THE INNER LINER OF THE DOOR, A CONTINUOUS FRAME-LIKE SPACER MEMBER ON THE OPPOSITE SIDE OF THE INNER LINER ARRANGED AROUND THE PERIPHERY OF THE PERFORATED PORTIONS, AND SECOND PANE OF GLASS SELED ACROSS THE FACE OF THE SPACER MEMBER.
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) | 1968-04-05 | 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 |