Patent US2533690A successfully refreshed from Google Patents.
US2533690A
Expired / Lapsed
US
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Germicidal light arrangement for ventilated space
Assignee: Pyle National Co
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Filing: 1949-05-03
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Granted: 1950-12-12
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Expires: 1969-05-03
Abstract
No abstract record available.
Inventors
- 👤 George K Raider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:17
CPC Classifications
B; B61; B61D; B61D27/00; B61D27/009
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2150263A
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US2218190A
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US2234037A
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US2248618A
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US2348486A
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US2359021A
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US2335056A
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US2413704A
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US2472243A
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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) | 1953-12-11 | 1954-06-12 | 1954-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-11 | 1958-06-12 | 1958-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-11 | 1962-06-12 | 1962-12-12 | $7700.00 | Window Closed / Lapsed |