US3045090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tap changer movable contact
Assignee: McGraw Edison Co
•
Filing: 1959-05-08
•
Granted: 1962-07-17
•
Expires: 1979-05-08
Abstract
No abstract record available.
Inventors
- 👤 Jr Gordon A Wilson
- 👤 Joseph W Yatchum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:46
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/0005; H01H9/0016
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE376108C
Cited
FR476941A
Cited
US1831843A
Cited
US1956026A
Cited
US1863392A
Cited
GB405424A
Cited
US2363866A
Cited
US2693573A
Cited
US2686236A
Cited
US2662130A
Cited
US2785242A
Cited
FR1175163A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-16 | 1966-01-15 | 1966-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-16 | 1970-01-15 | 1970-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-16 | 1974-01-15 | 1974-07-17 | $7700.00 | Window Closed / Lapsed |