US2353433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1941-11-17
•
Granted: 1944-07-11
•
Expires: 1961-11-17
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Auberschek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:47
CPC Classifications
B; B01; B01D; B01D36/00; B01D36/001; B01D29/00; B01D29/01; B01D29/05; B01D29/50; B01D29/56; B01D29/58
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) | 1947-07-11 | 1948-01-10 | 1948-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-07-11 | 1952-01-10 | 1952-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-07-11 | 1956-01-10 | 1956-07-11 | $7700.00 | Window Closed / Lapsed |