US2856470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extension cord assembly
Assignee: Individual
•
Filing: 1956-07-20
•
Granted: 1958-10-14
•
Expires: 1976-07-20
Abstract
No abstract record available.
Inventors
- 👤 Stanley R Hyde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:01
CPC Classifications
H; H02; H02G; H02G11/00; H02G11/02; B; B65; B65H; B65H75/00; B65H75/02; B65H75/34; B65H75/38; B65H75/40; B65H75/406
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US914772A
Cited
US1620562A
Cited
US1730104A
Cited
US1978734A
Cited
US2590890A
Cited
US2589500A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |