US2997701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plug-in cap with ground indicating light
Assignee: Harvey Hubbell Inc
•
Filing: 1958-10-16
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Granted: 1961-08-22
•
Expires: 1978-10-16
Abstract
No abstract record available.
Inventors
- 👤 Raphael J Costanzo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:56
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/66; H01R13/717; H01R13/7172; H01R13/7177
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2303056A
Cited
US2731629A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-21 | 1965-02-20 | 1965-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-21 | 1969-02-20 | 1969-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-21 | 1973-02-20 | 1973-08-22 | $7700.00 | Window Closed / Lapsed |