US2799808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power-cross protector assembly
Assignee: Cook Electric Co
•
Filing: 1954-06-10
•
Granted: 1957-07-16
•
Expires: 1974-06-10
Abstract
No abstract record available.
Inventors
- 👤 Walter C Hasselhorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:02
CPC Classifications
H; H01; H01T; H01T1/00; H01T1/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1322610A
Cited
GB189624471A
Cited
US971935A
Cited
US1292661A
Cited
US1399005A
Cited
FR771328A
Cited
GB648736A
Cited
US2644115A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-15 | 1961-01-14 | 1961-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-15 | 1965-01-14 | 1965-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-15 | 1969-01-14 | 1969-07-16 | $7700.00 | Window Closed / Lapsed |