US3383639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cord extension coupling clamps
Assignee: FRED H ANDERSON JR
•
Filing: 1966-04-06
•
Granted: 1968-05-14
•
Expires: 1986-04-06
Abstract
No abstract record available.
Inventors
- 👤 Fred H Anderson
- 👤 Jr Fred H Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:49
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/62; H01R13/639; H01R13/6392; F; F16; F16B; F16B2200/00; F16B2200/69; Y; Y10; Y10T; Y10T403/00; Y10T403/50
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) | 1971-05-14 | 1971-11-13 | 1972-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-14 | 1975-11-13 | 1976-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-14 | 1979-11-13 | 1980-05-14 | $7700.00 | Window Closed / Lapsed |