Patent US3560922A successfully refreshed from Google Patents.
US3560922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-propelled vehicle with safety bumper
Assignee: FKI Industries Inc
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Filing: 1967-11-02
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Granted: 1971-02-02
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Expires: 1987-11-02
Abstract
Abstract THE SELF-PROPELLED VEHICLE DISCLOSED HEREIN COMPRISES A SAFETY BUMPER INCLUDING SPACED FLEXIBLE SHEET MEMBERS WITH A SWITCH INTERPOSED THEREBETWEEN WHEREBY WHEN AN OBSTACLE IS ENCOUNTED, THE OUTERMOST BUMPER IS MOVED TOWARD THE INNERMOST BUMPER TO CLOSE SAID SWITCH AND PRODUCE A STOP SIGNAL. MEANS ARE PROVIDED SO THAT IN THE EVENT OF CLOSURE OF THE SWITCH OR BREAKING OF ANY OF THE LEADS TO THE SWITCH, A STOP SIGNAL IS PRODUCED.
Inventors
- 👤 Kenneth A Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:06
CPC Classifications
B; B60; B60R; B60R19/00; B60R19/02; H; H03; H03K; H03K5/00; H03K5/13
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) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |