US2605329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for checking the integrity of electric circuits
Assignee: Westinghouse Air Brake Co
•
Filing: 1948-05-05
•
Granted: 1952-07-29
•
Expires: 1968-05-05
Abstract
No abstract record available.
Inventors
- 👤 Claude M Hines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:32
CPC Classifications
B; B60; B60T; B60T17/00; B60T17/18; B60T17/22; B60T17/228; B60T13/00; B60T13/10; B60T13/66; B60T13/665
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1765475A
Cited
US2055563A
Cited
US2052190A
Cited
US2091007A
Cited
US2276706A
Cited
US2478000A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-29 | 1956-01-28 | 1956-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-29 | 1960-01-28 | 1960-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-29 | 1964-01-28 | 1964-07-29 | $7700.00 | Window Closed / Lapsed |