US2878372A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circular lighting fixture
Assignee: Individual
•
Filing: 1957-02-13
•
Granted: 1959-03-17
•
Expires: 1977-02-13
Abstract
No abstract record available.
Inventors
- 👤 Ben L Fry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:32
CPC Classifications
F; F21; F21S; F21S8/00; F21V; F21V29/00; F21V29/50; F21V29/70; F21V29/83; F21S8/03; F21S8/031; F21S8/04; F21Y; F21Y2103/00; F21Y2103/30; F21Y2103/33
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-16 | 1962-09-15 | 1963-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-16 | 1966-09-15 | 1967-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-16 | 1970-09-15 | 1971-03-17 | $7700.00 | Window Closed / Lapsed |