US2562887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vapor lamp and system
Assignee: Westinghouse Electric Corp
•
Filing: 1945-01-04
•
Granted: 1951-08-07
•
Expires: 1965-01-04
Abstract
No abstract record available.
Inventors
- 👤 Norman C Beese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:13
CPC Classifications
H; H04; H04B; H04B10/00; H04B10/11; H01; H01J; H01J61/00; H01J61/02; H01J61/04; H01J61/06; H01J61/067; H01J61/12; H01J61/18; H01J61/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2116689A
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GB468805A
Cited
US2187908A
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US2249672A
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FR864238A
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US2429118A
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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) | 1954-08-06 | 1955-02-05 | 1955-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-06 | 1959-02-05 | 1959-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-06 | 1963-02-05 | 1963-08-07 | $7700.00 | Window Closed / Lapsed |