US2521722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single conductor locking connector
Assignee: Harvey Hubbell Inc
•
Filing: 1944-02-02
•
Granted: 1950-09-12
•
Expires: 1964-02-02
Abstract
No abstract record available.
Inventors
- 👤 Hubbell Harvey
- 👤 Jr Joseph F Healy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:52
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/02; H01R13/33
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US839260A
Cited
CH47858A
Cited
US978630A
Cited
AT91452B
Cited
US1441045A
Cited
FR828535A
Cited
US2261372A
Cited
US2427001A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-11 | 1954-03-13 | 1954-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-11 | 1958-03-13 | 1958-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-11 | 1962-03-13 | 1962-09-12 | $7700.00 | Window Closed / Lapsed |