Patent US2985781A successfully refreshed from Google Patents.
US2985781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slip ring assembly
Assignee: Motors Liquidation Co
•
Filing: 1958-09-22
•
Granted: 1961-05-23
•
Expires: 1978-09-22
Abstract
No abstract record available.
Inventors
- 👤 Lawrence E Julian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:58
CPC Classifications
H; H01; H01R; H01R39/00; H01R39/02; H01R39/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
FR401241A
Cited
US1493859A
Cited
FR876596A
Cited
US2291071A
Cited
DE903944C
Cited
US2551030A
Cited
DE917496C
Cited
US2880402A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |