Patent US3702202A successfully refreshed from Google Patents.
US3702202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Energy storing/absorbing bumper support systems
Assignee: Houdaille Industries Inc
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Filing: 1970-04-30
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Granted: 1972-11-07
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Expires: 1990-04-30
Abstract
Abstract BUCKLING COLUMNS, I.E. STEEL BARS HAVING STIFF SPRING RESILIENCY, PROVIDE BUMPER SUPPORT ENABLING RETURNABLE YIELDING OF THE BUMPER AFTER AT LEAST A PREDETERMINED MAXIMUM IMPACT PRESSURE THEREAGAINST. IN AN AUTOMOBILE BUMPER A SAFE IMPACT LOAD PROVISION OF FIVE MILES PER HOUR FOR A FOUR THOUSAND POUND VEHICLE PERMITTING ABOUT TWO INCH DEFLECTION UNDER PRESSURE WILL ELIMINATE A SUBSTANTIAL AMOUNT OF POTENTIAL DAMAGE TO AN AUTOMOBILE BUMPER. EXCESSIVE REBOUND ENERGY MAY BE DAMPED BY INSERTING FRICTION BUFFING AND DAMPING INTO THE SYSTEM.
Inventors
- 👤 Rollin Douglas Rumsey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:55
CPC Classifications
B; B60; B60R; B60R19/00; B60R19/02; B60R19/24; B60R19/26; B60R19/28; B60R19/285
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) | 1975-11-07 | 1976-05-08 | 1976-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-07 | 1980-05-08 | 1980-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-07 | 1984-05-08 | 1984-11-07 | $7700.00 | Window Closed / Lapsed |