US3083317A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emergency sign and auxiliary power system
Assignee: Individual
•
Filing: 1960-04-04
•
Granted: 1963-03-26
•
Expires: 1980-04-04
Abstract
No abstract record available.
Inventors
- 👤 Walter Y Fish
- 👤 Jr W H Conlee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:59
CPC Classifications
H; H02; H02J; H02J9/00; H02J9/04; H02J9/06; H02J9/062; H02J9/065; H02M; H02M7/00; H02M7/42; H02M7/44; H02M7/48; H02M7/53; H02M7/537; H02M7/5383; H02M7/53832; H02M7/53835
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
77 words
IN AN EMERGENCY SIGN INCLUDING A CASING HAVING A TRANSLUCENT PANEL MOUNTED THEREIN, AN INCANDESCENT LAMP MOUNTED IN SAID CASING FOR ILLUMINATING SAID PANEL, SAID LAMP HAVING FIRST TERMINALS FOR CONNECTION TO A HOUSE LIGHTING SYSTEM, AND AUXILIARY MEANS FOR ILLUMINATING SAID TRANSLUCENT PANEL UPON EXTINGISHMENT OF SAID LAMP, CHARACTERIZED IN THAT SAID AUXILIARY MEANS COMPRISES: ELECTROLUMINESCENT LETTERS SUPPORTED BY SAID TRANSLUCENT PANEL; CONDUCTORS CONNECTING SAID LETTERS TOGETHER ELECTRICALLY, SAID CONDUCTORS HAVING A SECOND TERMINAL MOUNTED THEREON;
References Cited (Backward Citations)
US1725206A
Cited
US1946570A
Cited
US2604711A
Cited
GB785884A
Cited
US2858632A
Cited
US2919366A
Cited
US2922912A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-25 | 1966-09-24 | 1967-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-25 | 1970-09-24 | 1971-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-25 | 1974-09-24 | 1975-03-26 | $7700.00 | Window Closed / Lapsed |