US2428322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Panelboard of detachably mounted switching devices
Assignee: Bulldog Electric Products Co
•
Filing: 1944-09-09
•
Granted: 1947-09-30
•
Expires: 1964-09-09
Abstract
No abstract record available.
Inventors
- 👤 Robertson William
- 👤 Louis W Higgins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:07
CPC Classifications
H; H02; H02B; H02B1/00; H02B1/015; H02B1/04; H02B1/056
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1296653A
Cited
US1271641A
Cited
US1426921A
Cited
US2103325A
Cited
US2268619A
Cited
US2359247A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-09-29 | 1951-03-31 | 1951-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-29 | 1955-03-31 | 1955-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-29 | 1959-03-31 | 1959-09-30 | $7700.00 | Window Closed / Lapsed |