US3522401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manual motor actuated operating mechanism for electrical switches
Assignee: Erickson Electrical Equipment Co
•
Filing: 1967-09-01
•
Granted: 1970-08-04
•
Expires: 1987-09-01
Abstract
No abstract record available.
Inventors
- 👤 Manfred Stene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:38
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/20; H01H9/22; H01H3/00; H01H3/22; H01H3/26; H01H5/00; H01H5/04; H01H5/06; H01H9/10; H01H2003/266
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1801866A
Cited
US1835982A
Cited
US2025682A
Cited
US2726363A
Cited
US3236967A
Cited
US3234803A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-03 | 1974-02-02 | 1974-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-03 | 1978-02-02 | 1978-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-03 | 1982-02-02 | 1982-08-04 | $7700.00 | Window Closed / Lapsed |