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US2748950A
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Assignee: Individual
•
Filing: 1951-09-13
•
Granted: 1956-06-05
•
Expires: 1971-09-13
Abstract
No abstract record available.
Inventors
- 👤 Charles M Tursky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:12
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/44; B01D29/48; B01D2201/00; B01D2201/04; B01D2201/043; B01D2201/0453
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-05 | 1959-12-05 | 1960-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-05 | 1963-12-05 | 1964-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-05 | 1967-12-05 | 1968-06-05 | $7700.00 | Window Closed / Lapsed |