US3717326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Energy absorbing highway barrier
Assignee: Oregon Tool Inc
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Filing: 1971-07-12
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Granted: 1973-02-20
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Expires: 1991-07-12
Abstract
Abstract A SERIES OF ALIGNED POSTS PIVOTALLY ANCHORED BY ENERGY ABSORPTION DEVICES ALONG A ROADWAY, A LENGTH OF CABLE SUPPORTED IN SLIDEWAYS ON THE POSTS AND ENERGY ABSORPTION DEVICES LOCATED AT SELECTED POINTS ALONG THE CABLE WHEREBY ON RECEIVING THE IMPACT OF AN AUTOMOBILE OR THE LIKE, THE ENERGY IMPARTED TO THE CABLE AND POSTS IS ABSORBED BY THE ENERGY ABSORPTION DEVICES.
Inventors
- 👤 W Pierson
- 👤 A Leach
- 👤 G Sandberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:59
CPC Classifications
E; E01; E01F; E01F15/00; E01F15/02; E01F15/06
Claims Analysis
Total Claims: 0
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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) | 1976-02-20 | 1976-08-21 | 1977-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-20 | 1980-08-21 | 1981-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-20 | 1984-08-21 | 1985-02-20 | $7700.00 | Window Closed / Lapsed |