US3448257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Illuminated railing
Assignee: CHARLES E SACKETT JR
•
Filing: 1965-12-13
•
Granted: 1969-06-03
•
Expires: 1985-12-13
Abstract
No abstract record available.
Inventors
- 👤 Charles E Sackett Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:59
CPC Classifications
F; F21; F21V; F21V33/00; F21V33/006; E; E04; E04F; E04F11/00; E04F11/18; E04F2011/1868; E04F2011/1872; 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) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |