US2596104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Column apparatus
Assignee: Individual
•
Filing: 1947-11-22
•
Granted: 1952-05-13
•
Expires: 1967-11-22
Abstract
No abstract record available.
Inventors
- 👤 Claude B Schneible
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:29
CPC Classifications
B; B01; B01D; B01D47/00; B01D3/00; B01D3/14; B01D3/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1471101A
Cited
GB290553A
Cited
US1783813A
Cited
US1894744A
Cited
US1922259A
Cited
US2114786A
Cited
US2259033A
Cited
US2409088A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-13 | 1955-11-12 | 1956-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-13 | 1959-11-12 | 1960-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-13 | 1963-11-12 | 1964-05-13 | $7700.00 | Window Closed / Lapsed |