US2576774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Support for bus bars in a duct system of distribution
Assignee: General Electric Co
•
Filing: 1948-12-31
•
Granted: 1951-11-27
•
Expires: 1968-12-31
Abstract
No abstract record available.
Inventors
- 👤 Elmer T Carlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:36
CPC Classifications
H; H02; H02G; H02G5/00; H02G5/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US404877A
Cited
US1936470A
Cited
US2122298A
Cited
US2181664A
Cited
US2310919A
Cited
US2356006A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-26 | 1955-05-28 | 1955-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-26 | 1959-05-28 | 1959-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-26 | 1963-05-28 | 1963-11-27 | $7700.00 | Window Closed / Lapsed |