US2449150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable indicator device for ordinary two prong plugs
Assignee: Individual
•
Filing: 1945-11-19
•
Granted: 1948-09-14
•
Expires: 1965-11-19
Abstract
No abstract record available.
Inventors
- 👤 Schnoll Nathan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:27
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/66; H01R13/717; H01R13/7177
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) | 1951-09-14 | 1952-03-15 | 1952-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-14 | 1956-03-15 | 1956-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-14 | 1960-03-15 | 1960-09-14 | $7700.00 | Window Closed / Lapsed |