Patent US2465648A successfully refreshed from Google Patents.
US2465648A
Expired / Lapsed
US
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Light transmitting member for indicating leakage in cabinet closures
Assignee: Lanteris Space LLC
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Filing: 1946-02-07
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Granted: 1949-03-29
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Expires: 1966-02-07
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles E Helig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:56
CPC Classifications
F; F25; F25D; F25D27/00; F25D2400/00; F25D2400/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1332571A
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US1455864A
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US2071284A
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US2132048A
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US2112924A
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US2076058A
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US2177101A
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US2187551A
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US2259910A
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US2360138A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-28 | 1952-09-27 | 1953-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-28 | 1956-09-27 | 1957-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-28 | 1960-09-27 | 1961-03-29 | $7700.00 | Window Closed / Lapsed |