US2965751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lighting fixtures
Assignee: Individual
•
Filing: 1957-08-28
•
Granted: 1960-12-20
•
Expires: 1977-08-28
Abstract
No abstract record available.
Inventors
- 👤 Theophile A Stiffel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:51
CPC Classifications
F; F21; F21V; F21V21/00; F21V21/13; F21V23/00; F21V23/06
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) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |