US2687516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Guards for fluorescent light tubes
Assignee: Individual
•
Filing: 1950-05-31
•
Granted: 1954-08-24
•
Expires: 1970-05-31
Abstract
No abstract record available.
Inventors
- 👤 Schneiderman Eli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:46
CPC Classifications
F; F21; F21V; F21V25/00; F21V25/02; F21V19/00; F21V19/0075; F21V19/008; F21V19/009; H; H05; H05B; H05B41/00; H05B41/14; H05B41/46; F21Y; F21Y2103/00
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) | 1957-08-23 | 1958-02-22 | 1958-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-23 | 1962-02-22 | 1962-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-23 | 1966-02-22 | 1966-08-24 | $7700.00 | Window Closed / Lapsed |