Patent US2168026A successfully refreshed from Google Patents.
Patent US2966537A successfully refreshed from Google Patents.
US2966537A
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High temperature furnace
Assignee: Curtiss Wright Corp
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Filing: 1958-07-17
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Granted: 1960-12-27
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Expires: 1978-07-17
Abstract
No abstract record available.
Inventors
- 👤 Robert M Witucki
- 👤 Richard L Curtis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:15
CPC Classifications
F; F27; F27D; F27D11/00; F27D11/02; H; H05; H05B; H05B3/00; H05B3/62; F27B; F27B17/00; F27B17/02; F27B5/00; F27B5/06; F27B5/14; F27D19/00; F27D21/00; F27D21/0014; F27D99/00; F27D99/0001; F27D99/0006; F27D2099/0008; Y; Y10; Y10S; Y10S117/00; Y10S117/90; Y10T; Y10T117/00; Y10T117/10; Y10T117/1004; Y10T117/1012; Y10T117/1016
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2650254A
Cited
US984119A
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US1499317A
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GB231090A
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GB241256A
Cited
US2149447A
Cited
US2491579A
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US2476916A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-27 | 1964-06-27 | 1964-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-27 | 1968-06-27 | 1968-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-27 | 1972-06-27 | 1972-12-27 | $7700.00 | Window Closed / Lapsed |