Patent US2713631A successfully refreshed from Google Patents.
US2713631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direct fluorescent lighting equipment
Assignee: Solux Corp
•
Filing: 1954-06-30
•
Granted: 1955-07-19
•
Expires: 1974-06-30
Abstract
No abstract record available.
Inventors
- 👤 Anthony E Spinetta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:10
CPC Classifications
F; F21; F21S; F21S8/00; F21S8/02; F21V; F21V17/00; F21Y; F21Y2103/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2032622A
Cited
US2261733A
Cited
US2291494A
Cited
US2362091A
Cited
US2398507A
Cited
US2523840A
Cited
US2545307A
Cited
US2640146A
Cited
US2563146A
Cited
US2596634A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-18 | 1959-01-17 | 1959-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-18 | 1963-01-17 | 1963-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-18 | 1967-01-17 | 1967-07-19 | $7700.00 | Window Closed / Lapsed |