Patent US3145998A successfully refreshed from Google Patents.
US3145998A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bottom structure for laminated ski
Assignee: Hart Ski Manufacturing Co Inc
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Filing: 1962-04-02
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Granted: 1964-08-25
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Expires: 1982-04-02
Abstract
No abstract record available.
Inventors
- 👤 Hartvig E Holmberg
- 👤 Harry E Holmberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:41
CPC Classifications
A; A63; A63C; A63C5/00; A63C5/12; A63C5/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
IN A LAMINATED SKI, A BOTTOM STRUCTURE THEREFOR COMPRISING A HARD CONTINUOUS SHEET OF WELDABLE METAL BONDED AS A LAMINATE THERETO, SAID SHEET EXTENDING SUBSTANTIALLY FOR THE LENGTH AND SUBSTANTIALLY FOR THE WIDTH OF SAID SKI, RIGHT ANGLED RUNNING EDGE MEANS ALSO OF WELDABLE METAL AT EACH SIDE OF SAID SHEET, EACH OF SAID RUNNING EDGE MEANS HAVING AN INWARDLY DIRECTED HORIZONTAL FLANGE AND A DOWNWARDLY DIRECTED VERTICAL FLANGE, SAID HORIZONTAL FLANGES BEING WELDED DIRECTLY TO MARGINAL PORTION OF SAID SHEET TO FORM A CHANNEL-SHAPED UNIT COMPOSED OF SAID SHEET AND RUNNING EDGE MEANS, AND A RUNNING SHEET HAVING AT LEAST A SUBSTANTIAL PORTION OF ITS UPPER FACE BONDED TO THE LOWER FACE OF SAID METAL SHEET BETWEEN SAID RUNNING EDGE MEANS WHEREBY TO FORM A SMOOTH CONTINUOUS SURFACE WITH SAID RUNNING EDGE MEANS.
Claim 2
Dependent Claim
134 words
IN A LAMINATED SKI, A BOTTOM STRUCTURE THEREFOR COMPRISING A HARD CONTINUOUS SHEET OF WELDABLE METAL BONDED AS A LAMINATE THERETO, SAID SHEET EXTENDING SUBSTANTIALLY FOR THE LENGTH AND SUBSTANTIALLY FOR THE WIDTH OF SAID SKI, RIGHT ANGLED RUNNING EDGE MEANS ALSO OF WELDABLE METAL AT EACH SIDE OF SAID SHEET, EACH OF SAID RUNNING EDGE MEANS HAVING AN INWARDLY DIRECTED HORIZONTAL FLANGE AND A DOWNWARDLY DIRECTED VERTICAL FLANGE, SAID HORIZONTAL FLANGES BEING WELDED DIRECTLY TO MARGINAL PORTION OF SAID SHEET TO FORM A CHANNEL-SHAPED UNIT COMPOSED OF SAID SHEET AND RUNNING EDGE MEANS, AND A RUNNING SHEET HAVING AT LEAST A SUBSTANTIAL PORTION OF ITS UPPER FACE BONDED TO THE LOWER FACE OF SAID METAL SHEET BETWEEN SAID RUNNING EDGE MEANS WHEREBY TO FORM A SMOOTH CONTINUOUS SURFACE WITH SAID RUNNING EDGE MEANS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |