US3740301A
Expired / Lapsed
US
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Elongated lightweight structure
Assignee: Tensor Corp
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Filing: 1971-07-14
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Granted: 1973-06-19
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Expires: 1991-07-14
Abstract
Abstract A LIGHTWEIGHT SKI CONSTRUCTED OF A HONEYCOMB CORE WITH ITS RIBBON DIRECTION PARALLEL TO THE LENGTH OF THE SKI, FIRST REINFORCING FIBERS EXTENDING PARALLEL TO THE SKI LENGTH, AND SECOND REINFORCING FIBERS DISPOSED DIAGONALLY COMPLETELY AROUND THE SKI. THE FIBERS ARE BONDED O EACH OTHER AND TO THE HONEY COMB CORE.
Inventors
- 👤 L Manning
- 👤 Kee R Mc
- 👤 H Zemke
- 👤 B Douglas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:23
CPC Classifications
B; B32; B32B; B32B3/00; B32B3/10; B32B3/12; A; A63; A63C; A63C5/00; A63C5/12; B32B15/00; B32B15/14; B32B5/00; B32B5/02; B32B5/12; B32B5/22; B32B5/24; B32B5/26; Y; Y10; Y10S; Y10S273/00; Y10S273/23; Y10T; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24074; Y10T428/24116; Y10T428/24149; Y10T428/24479; Y10T428/24521; Y10T428/30
Claims Analysis
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |