US3366441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultraviolet system for control of algae and slime within humidity control and similar systems
Assignee: Ultra Dynamics Corp
•
Filing: 1964-02-10
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Granted: 1968-01-30
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Expires: 1984-02-10
Abstract
No abstract record available.
Inventors
- 👤 Ellner George
- 👤 Ellner Sidney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:05
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/12; Y; Y10; Y10S; Y10S261/00; Y10S261/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2343338A
Cited
US2484559A
Cited
US2485267A
Cited
FR1101958A
Cited
US2889837A
Cited
US3174819A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-29 | 1971-07-31 | 1972-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-29 | 1975-07-31 | 1976-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-29 | 1979-07-31 | 1980-01-30 | $7700.00 | Window Closed / Lapsed |