US3441943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locomotive recording system
Assignee: Eaton Aeroquip LLC
•
Filing: 1967-12-04
•
Granted: 1969-04-29
•
Expires: 1987-12-04
Abstract
No abstract record available.
Inventors
- 👤 David D Mccue
- 👤 Thomas A Brendle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:00
CPC Classifications
G; G01; G01P; G01P3/00; G01P3/42; G01P3/44; G01P3/48; G01P3/4802; G01P1/00; G01P1/12; G01P1/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2342687A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-28 | 1972-10-28 | 1973-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-28 | 1976-10-28 | 1977-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-28 | 1980-10-28 | 1981-04-29 | $7700.00 | Window Closed / Lapsed |