Patent US4368869A successfully refreshed from Google Patents.
Patent US2453314A successfully refreshed from Google Patents.
US2453314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power distribution system of the bus bar duct type
Assignee: Trumbull Electric Manufacturing Co
•
Filing: 1947-10-16
•
Granted: 1948-11-09
•
Expires: 1967-10-16
Abstract
No abstract record available.
Inventors
- 👤 Hammerly Herman John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:58
CPC Classifications
H; H01; H01R; H01R25/00; H01R25/14; H01R13/00; H01R13/66; H01R13/68; H02; H02G; H02G5/00; H02G5/06; H02G5/08; H01R25/145
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US460725A
Cited
US2230423A
Cited
GB275225A
Cited
US2043796A
Cited
US2107412A
Cited
US2038107A
Cited
US2166752A
Cited
US2264075A
Cited
US2238834A
Cited
US2318861A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-09 | 1952-05-10 | 1952-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-09 | 1956-05-10 | 1956-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-09 | 1960-05-10 | 1960-11-09 | $7700.00 | Window Closed / Lapsed |