Patent US1512815A successfully refreshed from Google Patents.
US1512815A
Expired / Lapsed
US
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Electrical receptacle and plug
Assignee: Benjamin Electric Manufacturing Co
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Filing: 1920-10-08
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Granted: 1924-10-21
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Expires: 1940-10-08
Abstract
No abstract record available.
Inventors
- 👤 Reuben B Benjamin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:27
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/46; H01R13/52; H01R13/5219
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1927-10-21 | 1928-04-21 | 1928-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-10-21 | 1932-04-21 | 1932-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-10-21 | 1936-04-21 | 1936-10-21 | $7700.00 | Window Closed / Lapsed |