US1489223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drying machine
Assignee: PHILADELPHIA DRYING MACHINERY
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Filing: 1920-12-24
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Granted: 1924-04-01
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Expires: 1940-12-24
Abstract
No abstract record available.
Inventors
- 👤 Christian H Reumann
- 👤 Harold O Kaufmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:44
CPC Classifications
D; D06; D06C; D06C5/00; D06C5/005; D06F; D06F59/00; D06F59/02; D06F59/06; F; F26; F26B; F26B15/00; F26B15/10; F26B15/12; F26B15/18; F26B21/00; F26B21/20; F26B3/00; F26B3/02; F26B3/04
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) | 1927-04-01 | 1927-10-01 | 1928-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-04-01 | 1931-10-01 | 1932-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-04-01 | 1935-10-01 | 1936-04-01 | $7700.00 | Window Closed / Lapsed |