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US2468296A
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Assignee: JACOBOWITZ
•
Filing: 1945-02-05
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Granted: 1949-04-26
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Expires: 1965-02-05
Abstract
No abstract record available.
Inventors
- 👤 Jacobowitz Arnold
- 👤 Edward A Ulrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:50
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/11; B01D29/111; B01D29/39
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1381944A
Cited
US1370470A
Cited
US1601947A
Cited
US1867397A
Cited
US2061351A
Cited
US2328148A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-25 | 1952-10-25 | 1953-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-25 | 1956-10-25 | 1957-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-25 | 1960-10-25 | 1961-04-26 | $7700.00 | Window Closed / Lapsed |