US3384858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lampholder for fluorescent lamps
Assignee: KULKA ELECTRIC CORP
•
Filing: 1965-04-09
•
Granted: 1968-05-21
•
Expires: 1985-04-09
Abstract
No abstract record available.
Inventors
- 👤 Johnson George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:55
CPC Classifications
F; F21; F21V; F21V19/00; F21V19/0075; F21V19/008
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2794962A
Cited
US2916675A
Cited
US3116098A
Cited
US3111353A
Cited
AT237103B
Cited
US3260986A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-21 | 1971-11-20 | 1972-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-21 | 1975-11-20 | 1976-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-21 | 1979-11-20 | 1980-05-21 | $7700.00 | Window Closed / Lapsed |