Patent US3047291A successfully refreshed from Google Patents.
US3047291A
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Ski practicing method and apparatus
Assignee: CHARLES L SAUNDERS JR
•
Filing: 1960-11-04
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Granted: 1962-07-31
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Expires: 1980-11-04
Abstract
No abstract record available.
Inventors
- 👤 Raymond L Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:04
CPC Classifications
E; E01; E01C; E01C13/00; E01C13/10; E01C13/12; A; A63; A63B; A63B69/00; A63B69/18; A63C; A63C19/00; A63C19/10; E04; E04H; E04H3/00; E04H3/10; E04H3/14; Y; Y10; Y10S; Y10S273/00; Y10S273/07; Y10S273/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1133489A
Cited
US2161799A
Cited
CH207537A
Cited
US2251927A
Cited
US2254482A
Cited
US2742288A
Cited
US2908506A
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 |