US2958743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shielded collector shoe and bus bar
Assignee: American Monorail Co
•
Filing: 1957-06-20
•
Granted: 1960-11-01
•
Expires: 1977-06-20
Abstract
No abstract record available.
Inventors
- 👤 Ralph T Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:30
CPC Classifications
H; H02; H02G; H02G5/00; H02G5/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US810069A
Cited
US1611733A
Cited
US1747924A
Cited
US2443387A
Cited
US2443371A
Cited
US2537866A
Cited
US2640114A
Cited
US2700705A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-01 | 1964-05-02 | 1964-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-01 | 1968-05-02 | 1968-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-01 | 1972-05-02 | 1972-11-01 | $7700.00 | Window Closed / Lapsed |