US3033981A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lighting fixtures
Assignee: Individual
•
Filing: 1959-12-07
•
Granted: 1962-05-08
•
Expires: 1979-12-07
Abstract
No abstract record available.
Inventors
- 👤 Leonard H Kushner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:44
CPC Classifications
F; F21; F21S; F21S8/00; F21S8/04; F21S8/06; F21V; F21V11/00; F21Y; F21Y2103/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2309059A
Cited
US2374497A
Cited
US2525315A
Cited
US2546190A
Cited
US2691720A
Cited
GB746955A
Cited
FR1118879A
Cited
US2837632A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |