US3489038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential mechanism
Assignee: Eaton Corp
•
Filing: 1968-01-10
•
Granted: 1970-01-13
•
Expires: 1988-01-10
Abstract
No abstract record available.
Inventors
- 👤 Daniel W Roper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:12
CPC Classifications
F; F16; F16H; F16H48/00; F16H48/12; F16H48/16; F16H48/06; F16H48/08; F16H48/20; F16H48/26; F16H48/38; F16H48/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1446545A
Cited
US2821096A
Cited
US3008350A
Cited
GB1004689A
Cited
US3276290A
Cited
US3313180A
Cited
US3326064A
Cited
US3324744A
Cited
US3388779A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |