Patent US3138432A successfully refreshed from Google Patents.
US3138432A
Expired / Lapsed
US
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Device for the treatment of ambient room atmosphere
Assignee: Luce Reflexite Corp
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Filing: 1962-05-11
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Granted: 1964-06-23
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Expires: 1982-05-11
Abstract
No abstract record available.
Inventors
- 👤 Herbert F Kleinhans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:52
CPC Classifications
A; A61; A61L; A61L9/00; Y; Y10; Y10S; Y10S206/00; Y10S206/806; Y10T; Y10T292/00; Y10T292/08; Y10T292/1039; Y10T292/1041
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB333698A
Cited
AU1436033A
Cited
US2085991A
Cited
US2251058A
Cited
US2222882A
Cited
US2557432A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |