US2988930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boat steering apparatus
Assignee: Individual
•
Filing: 1959-11-06
•
Granted: 1961-06-20
•
Expires: 1979-11-06
Abstract
No abstract record available.
Inventors
- 👤 Mcmurray Edward
- 👤 Sr Donald W Emery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:35
CPC Classifications
B; B63; B63H; B63H20/00; B63H20/08; B63H20/12; B63H25/00; B63H25/02; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20207; Y10T74/20213; Y10T74/20232; Y10T74/20528
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US352512A
Cited
US827969A
Cited
US1134261A
Cited
US1451452A
Cited
US2688299A
Cited
US2726622A
Cited
US2912877A
Cited
US2947193A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |