Patent US3204985A successfully refreshed from Google Patents.
US3204985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trailer coupling
Assignee: Individual
•
Filing: 1963-03-07
•
Granted: 1965-09-07
•
Expires: 1983-03-07
Abstract
No abstract record available.
Inventors
- 👤 Karnath Kurt
- 👤 Karnath Gunther
- 👤 Karnath Klaus Jurgen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 04:09
CPC Classifications
B; B60; B60D; B60D1/00; B60D1/01; B60D1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |