US3341223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retractible safety steps
Assignee: Individual
•
Filing: 1965-09-01
•
Granted: 1967-09-12
•
Expires: 1985-09-01
Abstract
No abstract record available.
Inventors
- 👤 Wampfler Jacob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:41
CPC Classifications
B; B60; B60R; B60R3/00; B60R3/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
A RETRACTIBLE SAFETY STEP FOR THE EMERGENCY EXIT DOOR OF VEHICLES COMPRISING A PAIR OF LATERALLY SPACED LONGITUDINAL SUPPORT MEMBERS CONNECTED BENEATH THE VEHICLE EMERGENCY DOOR AND EXTENDING FORWARDLY OF THE VEHICLE, BEARING MEANS CONNECTED ON THE SURFACES OF SAID PAIR OF SUPPORT MEMBERS FACING EACH OTHER, A FIRST STEP PORTION CONNECTED FOR LONGITUDINAL MOVEMENT BETWEEN SAID PAIR OF SUPPORT MEMBERS BY SAID BEARING MEANS, A SECOND STEP PORTION, SUPPORT MEANS DEPENDING FROM SAID FIRST STEP PORTION CONNECTING SAID SECOND STEP PORTION FOR LONGITUDINAL MOVEMENT THEREWITH, SAID SECOND STEP PORTION SPACED BELOW AND REARWARDLY OF SAID FIRST STEP PORTION, AND AN ARM MEMBER IN SUBSTANTIALLY THE SAME HORIZONTAL PLANE AS SAID FIRST STEP PORTION PIVOTALLY CONNECTED AT ONE END TO THE BASE OF SAID EMERGENCY DOOR AND PIVOTALLY CONNECTED AT THE OTHER BENEATH SAID FIRST STEP PORTION AND ADAPTED TO SLIDE SAID FIRST AND SECOND STEP PORTIONS REARWARDLY FROM A STORED POSITION BENEATH THE VEHICLE TO AN EXTENDING POSITION BENEATH THE EMERGENCY DOOR AS THE DOOR IS OPENED.
Claim 2
Dependent Claim
168 words
A RETRACTIBLE SAFETY STEP FOR THE EMERGENCY EXIT DOOR OF VEHICLES COMPRISING A PAIR OF LATERALLY SPACED LONGITUDINAL SUPPORT MEMBERS CONNECTED BENEATH THE VEHICLE EMERGENCY DOOR AND EXTENDING FORWARDLY OF THE VEHICLE, BEARING MEANS CONNECTED ON THE SURFACES OF SAID PAIR OF SUPPORT MEMBERS FACING EACH OTHER, A FIRST STEP PORTION CONNECTED FOR LONGITUDINAL MOVEMENT BETWEEN SAID PAIR OF SUPPORT MEMBERS BY SAID BEARING MEANS, A SECOND STEP PORTION, SUPPORT MEANS DEPENDING FROM SAID FIRST STEP PORTION CONNECTING SAID SECOND STEP PORTION FOR LONGITUDINAL MOVEMENT THEREWITH, SAID SECOND STEP PORTION SPACED BELOW AND REARWARDLY OF SAID FIRST STEP PORTION, AND AN ARM MEMBER IN SUBSTANTIALLY THE SAME HORIZONTAL PLANE AS SAID FIRST STEP PORTION PIVOTALLY CONNECTED AT ONE END TO THE BASE OF SAID EMERGENCY DOOR AND PIVOTALLY CONNECTED AT THE OTHER BENEATH SAID FIRST STEP PORTION AND ADAPTED TO SLIDE SAID FIRST AND SECOND STEP PORTIONS REARWARDLY FROM A STORED POSITION BENEATH THE VEHICLE TO AN EXTENDING POSITION BENEATH THE EMERGENCY DOOR AS THE DOOR IS OPENED.
References Cited (Backward Citations)
US3008533A
Cited
US3229993A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |