US2676008A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the heat treatment and drying also only on the surface of substances in continuously working furnaces
Assignee: Individual
•
Filing: 1950-12-05
•
Granted: 1954-04-20
•
Expires: 1970-12-05
Abstract
No abstract record available.
Inventors
- 👤 Munker Theo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:40
CPC Classifications
F; F27; F27B; F27B9/00; F27B9/30; F27B9/40; C; C21; C21D; C21D9/00; C21D9/0006; F26; F26B; F26B3/00; F27D; F27D19/00; F27D2019/0003; F27D2019/0028; F27D2019/0059
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1951426A
Cited
US1945652A
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US2089015A
Cited
US2205182A
Cited
US2275265A
Cited
US2337410A
Cited
US2518905A
Cited
US2543388A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-19 | 1957-10-19 | 1958-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-19 | 1961-10-19 | 1962-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-19 | 1965-10-19 | 1966-04-20 | $7700.00 | Window Closed / Lapsed |