US3329795A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave oven
Assignee: Motors Liquidation Co
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Filing: 1964-08-28
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Granted: 1967-07-04
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Expires: 1984-08-28
Abstract
No abstract record available.
Inventors
- 👤 George B Long
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:41
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/64; H05B6/76; H05B6/766; H05B6/6414; H05B6/6432
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
103 words
IN A MICROWAVE OVEN, THE COMBINATION OF, AN INNER LINEAR FORMING AN OVEN CAVITY, A SOURCE OF MICROWAVE ENERGY, A POWER SUPPLY CIRCUIT FOR SAID SOURCE OF MICROWAVE ENERGY, SAID LINER INCLUDING A CONTINUOUS COLLAR FORMING AN ACCESS OPENING TO SAID OVEN CAVITY, A DOOR CLOSURE ASSEMBLY FOR SHIELDING AGAINST THE ESCAPE OF MICROWAVE ENERGY FROM SAID OVEN CAVITY, SAID DOOR CLOSURE ASSEMBLY INCLUDING A VIEWING FIELD FOR OBSERVING ARTICLES WITHIN SAID OVEN CAVITY, SAID VIEWING FIELD BEING COVERED BY A FRANGIBLE OPTICALLY TRANSPARENT SHIELD MEMBER, ELECTRICALLY CONDUCTIVE MEANS ON ONE FACE OF SAID FRANGIBLE SHIELD MEMBER FOR BLOCKING MICROWAVE ENERGY, A FIRST
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) | 1970-07-03 | 1971-01-02 | 1971-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-03 | 1975-01-02 | 1975-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-03 | 1979-01-02 | 1979-07-04 | $7700.00 | Window Closed / Lapsed |