Patent US3367892A successfully refreshed from Google Patents.
US2464643A
Expired / Lapsed
US
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Holder for gaseous discharge lamps
Assignee: Individual
•
Filing: 1945-04-05
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Granted: 1949-03-15
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Expires: 1965-04-05
Abstract
No abstract record available.
Inventors
- 👤 Eugene R Kulka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:46
CPC Classifications
H; H01; H01R; H01R33/00; H01R33/02; Y; Y10; Y10S; Y10S315/00; Y10S315/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE480774C
Cited
US2108633A
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US2285175A
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US2351616A
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US2393616A
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US2401555A
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US2393180A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-14 | 1952-09-13 | 1953-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-14 | 1956-09-13 | 1957-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-14 | 1960-09-13 | 1961-03-15 | $7700.00 | Window Closed / Lapsed |