Patent US3474389A successfully refreshed from Google Patents.
US3474389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric connector
Assignee: Individual
•
Filing: 1968-04-12
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Granted: 1969-10-21
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Expires: 1988-04-12
Abstract
No abstract record available.
Inventors
- 👤 Hideo Nagano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:57
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/28; H01R4/48; H01R4/489; H01R4/50; H01R4/52; H01R9/00; H01R9/22; H01R9/24; Y; Y10; Y10T; Y10T24/00; Y10T24/34; Y10T24/3427; Y10T24/3428; Y10T24/3429; Y10T24/39; Y10T24/3936; Y10T24/394; Y10T403/00; Y10T403/49; Y10T403/4983; Y10T403/59; Y10T403/60; Y10T403/608
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) | 1972-10-20 | 1973-04-21 | 1973-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-20 | 1977-04-21 | 1977-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-20 | 1981-04-21 | 1981-10-21 | $7700.00 | Window Closed / Lapsed |