US3440333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Connector with helically wound spring and internal means for releasing the spring to cause gripping of wires
Assignee: Individual
•
Filing: 1967-02-02
•
Granted: 1969-04-22
•
Expires: 1987-02-02
Abstract
No abstract record available.
Inventors
- 👤 John H Blomstrand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:52
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/22; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/929; Y10T; Y10T403/00; Y10T403/71; Y10T403/7171
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US988911A
Cited
US1933555A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-21 | 1972-10-21 | 1973-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-21 | 1976-10-21 | 1977-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-21 | 1980-10-21 | 1981-04-22 | $7700.00 | Window Closed / Lapsed |