US3030480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Holding means for instruments
Assignee: Westinghouse Air Brake Co
•
Filing: 1959-06-09
•
Granted: 1962-04-17
•
Expires: 1979-06-09
Abstract
No abstract record available.
Inventors
- 👤 Earl R Callender
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:23
CPC Classifications
G; G12; G12B; G12B3/00; G12B3/02; H; H01; H01H; H01H50/00; H01H50/16; H01H50/18; H01H50/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US901013A
Cited
US2125399A
Cited
US2351097A
Cited
US2390479A
Cited
US2371018A
Cited
US2872548A
Cited
US2965747A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |