US1372781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feeding and extracting apparatus for rotary-hearth ovens
Assignee: Timken Co
•
Filing: 1920-03-22
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Granted: 1921-03-29
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Expires: 1940-03-22
Abstract
No abstract record available.
Inventors
- 👤 Schlaupitz Oswald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:01
CPC Classifications
F; F27; F27B; F27B9/00; F27B9/30; F27B9/38; F27B9/14; F27B9/16; F27D; F27D19/00; F27D2019/0028; F27D2019/0059; F27M; F27M2001/00; F27M2001/15; F27M2001/1539
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1924-03-28 | 1924-09-27 | 1925-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-03-28 | 1928-09-27 | 1929-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-03-28 | 1932-09-27 | 1933-03-29 | $7700.00 | Window Closed / Lapsed |