Patent US3170060A successfully refreshed from Google Patents.
US3170060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High stability test oven
Assignee: Dow Chemical Co
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Filing: 1961-11-02
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Granted: 1965-02-16
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Expires: 1981-11-02
Abstract
No abstract record available.
Inventors
- 👤 Jr Kenneth R Oliver
- 👤 Mckimmy Henry Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:07
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/20; H05B3/22; H05B3/28; F; F27; F27D; F27D11/00; F27D11/02; H05B3/62; H05B3/64
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
88 words
IN AN OVEN, A WALL ASSEMBLY COMPRISING AN INNER AND AN OUTER PLATE MEANS, SAID INNER PLATE MEANS BEING FORMED TO PROVIDE A CONTINUOUS GENERALLY PARALLEL-GROOVE PASSAGEWAY ON ONE INTERIOR SURFACE THEREOF, A BLOCK MEANS ARRANGED BETWEEN THE INNER AND OUTER PLATE MEANS, SAID BLOCK MEANS BEING FORMED TO PROVIDE A PLURALITY OF GENERALLY PARALLEL-GROOVE MEANS WHICH EXTEND TRANSVERSELY OF SAID CONTINUOUS GENERALLY PARALLEL-GROOVE PASSAGEWAYS IN SAID INNER PLATE MEANS AT AN ANGLE NOT LESS THAN TEN DEGREES, AND ELECTRIC HEATING ELEMENTS ARRANGED IN SAID BLOCK GROOVE MEANS.
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) | 1968-02-16 | 1968-08-17 | 1969-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-16 | 1972-08-17 | 1973-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-16 | 1976-08-17 | 1977-02-16 | $7700.00 | Window Closed / Lapsed |