US2435113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bus duct for electrical distribution systems
Assignee: Frank Adam Electric Co
•
Filing: 1943-07-24
•
Granted: 1948-01-27
•
Expires: 1963-07-24
Abstract
No abstract record available.
Inventors
- 👤 Frederick B Adam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:38
CPC Classifications
H; H02; H02G; H02G5/00; H02G5/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2230423A
Cited
US2059986A
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US2263038A
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US2262067A
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US2318859A
Cited
US2288078A
Cited
US2372267A
Cited
US2356006A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-01-26 | 1951-07-28 | 1952-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-01-26 | 1955-07-28 | 1956-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-01-26 | 1959-07-28 | 1960-01-27 | $7700.00 | Window Closed / Lapsed |