US2356592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for producing ultra-violet radiation
Assignee: Hanovia Chemical and Manufacturing Co
•
Filing: 1943-01-22
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Granted: 1944-08-22
•
Expires: 1963-01-22
Abstract
No abstract record available.
Inventors
- 👤 Kolbert John Walter
- 👤 Haegele Frederick Gustav Adolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:22
CPC Classifications
A; A61; A61N; A61N5/00; A61N5/06
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) | 1947-08-22 | 1948-02-21 | 1948-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-08-22 | 1952-02-21 | 1952-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-08-22 | 1956-02-21 | 1956-08-22 | $7700.00 | Window Closed / Lapsed |