US2820112A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retractable cord mechanism
Assignee: General Electric Co
•
Filing: 1956-05-24
•
Granted: 1958-01-14
•
Expires: 1976-05-24
Abstract
No abstract record available.
Inventors
- 👤 Michael N Lupu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:57
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/34; B65H75/36; B65H75/368; H; H02; H02G; H02G11/00; H02G11/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1316431A
Cited
US1294884A
Cited
US1552095A
Cited
US1648582A
Cited
US1639465A
Cited
US1863341A
Cited
US2184363A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-13 | 1961-07-15 | 1962-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-13 | 1965-07-15 | 1966-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-13 | 1969-07-15 | 1970-01-14 | $7700.00 | Window Closed / Lapsed |