US2872889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water ski tow device
Assignee: Individual
•
Filing: 1954-08-26
•
Granted: 1959-02-10
•
Expires: 1974-08-26
Abstract
No abstract record available.
Inventors
- 👤 Charles T Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:47
CPC Classifications
B; B63; B63B; B63B34/00; B63B34/60; B63B34/67; B63H; B63H20/00; B63H20/02; B63H20/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1115807A
Cited
US1356013A
Cited
US1621168A
Cited
DE545892C
Cited
GB505852A
Cited
US2453857A
Cited
US2414248A
Cited
CH287460A
Cited
US2738525A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-09 | 1962-08-11 | 1963-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-09 | 1966-08-11 | 1967-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-09 | 1970-08-11 | 1971-02-10 | $7700.00 | Window Closed / Lapsed |