US3012132A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Long single-line fluorescent light fixture
Assignee: Sunbeam Lighting Co
•
Filing: 1958-09-11
•
Granted: 1961-12-05
•
Expires: 1978-09-11
Abstract
No abstract record available.
Inventors
- 👤 William B Rosenfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:01
CPC Classifications
F; F21; F21S; F21S8/00; F21S8/04; F21S8/06; F21Y; F21Y2103/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2288941A
Cited
US2543713A
Cited
US2569518A
Cited
US2753445A
Cited
US2739780A
Cited
US2818497A
Cited
US2932728A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-04 | 1965-06-05 | 1965-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-04 | 1969-06-05 | 1969-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-04 | 1973-06-05 | 1973-12-05 | $7700.00 | Window Closed / Lapsed |