US3401365A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic track cleaner
Assignee: Westinghouse Electric Corp
•
Filing: 1966-10-07
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Granted: 1968-09-10
•
Expires: 1986-10-07
Abstract
No abstract record available.
Inventors
- 👤 Ralph H Grader
- 👤 James A Freshwater
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:31
CPC Classifications
E; E01; E01H; E01H1/00; E01H1/14; B; B03; B03C; B03C1/00; B03C1/02; B03C1/025; B03C1/031; B03C1/033; B03C1/0332; B03C1/0335; B03C1/28; B03C1/30; B66; B66C; B66C7/00; E01H8/00; E01H8/10; B03C2201/00; B03C2201/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3249211A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |