US3467922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple circuit electrical switchboard with circuit selector
Assignee: B J MANAGEMENT CORP
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Filing: 1968-01-18
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Granted: 1969-09-16
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Expires: 1988-01-18
Abstract
No abstract record available.
Inventors
- 👤 Robert A Greenwall Jr
- 👤 Jack L Halvorsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:59
CPC Classifications
H; H01; H01H; H01H13/00; H01H13/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-15 | 1973-03-17 | 1973-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-15 | 1977-03-17 | 1977-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-15 | 1981-03-17 | 1981-09-16 | $7700.00 | Window Closed / Lapsed |