US3047302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Propelling device for skiers and the like
Assignee: Individual
•
Filing: 1960-10-04
•
Granted: 1962-07-31
•
Expires: 1980-10-04
Abstract
No abstract record available.
Inventors
- 👤 Constantin A Krylov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:26
CPC Classifications
A; A63; A63C; A63C5/00; A63C5/08; A63C5/11; B; B62; B62M; B62M27/00; B63; B63H; B63H8/00; B63H8/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US68768A
Cited
US915677A
Cited
US1878816A
Cited
US1799664A
Cited
US2152984A
Cited
US2440292A
Cited
US2456440A
Cited
US2864613A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |