US2643364A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interlocking shockproof electrical plug
Assignee: Individual
•
Filing: 1949-04-02
•
Granted: 1953-06-23
•
Expires: 1969-04-02
Abstract
No abstract record available.
Inventors
- 👤 Benjamin F Nauslar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:01
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/02; H01R13/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1376068A
Cited
US1618939A
Cited
US1890484A
Cited
US1957773A
Cited
US1966156A
Cited
US2170359A
Cited
FR852953A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-22 | 1956-12-22 | 1957-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-22 | 1960-12-22 | 1961-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-22 | 1964-12-22 | 1965-06-23 | $7700.00 | Window Closed / Lapsed |