US2585838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sequential batch treating apparatus
Assignee: Ransohoff Inc
•
Filing: 1948-12-18
•
Granted: 1952-02-12
•
Expires: 1968-12-18
Abstract
No abstract record available.
Inventors
- 👤 Ransohoff Nathan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:47
CPC Classifications
B; B24; B24B; B24B31/00; B24B31/02; B24B31/03; C; C23; C23G; C23G3/00; C25; C25D; C25D17/00; C25D17/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1278501A
Cited
US1736846A
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US1995300A
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US2235196A
Cited
US2212560A
Cited
GB482871A
Cited
US2209080A
Cited
US2471506A
Cited
US2464486A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-11 | 1955-08-13 | 1956-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-11 | 1959-08-13 | 1960-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-11 | 1963-08-13 | 1964-02-12 | $7700.00 | Window Closed / Lapsed |