US2723349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for ionizing an air stream
Assignee: Individual
•
Filing: 1952-05-07
•
Granted: 1955-11-08
•
Expires: 1972-05-07
Abstract
No abstract record available.
Inventors
- 👤 Rylsky Gregory Vladimir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:58
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/007; A61L; A61L9/00; A61L9/16; A61L9/22; A61N; A61N1/00; A61N1/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2381455A
Cited
US2594777A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-07 | 1959-05-09 | 1959-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-07 | 1963-05-09 | 1963-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-07 | 1967-05-09 | 1967-11-08 | $7700.00 | Window Closed / Lapsed |