US4520897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable steps
Assignee: Individual
•
Filing: 1984-05-14
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Granted: 1985-06-04
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Expires: 2004-05-14
Abstract
Abstract Portable steps are disclosed herein including a plurality of step rungs arranged next to each other in parallel side-by-side relationship wherein each step rung has an elongated rigid member intended to be stepped upon by a riser which incorporates a pair of ground engaging spikes at each end of the step rung adapted to penetrate into the ground for a given length determined by a releasable guage. The spikes are pivotally carried on the step rung which includes a shaped recess corresponding to the shape of the spikes for storage and transportation purposes.
Inventors
- 👤 George B. Gebo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:59
CPC Classifications
E; E04; E04F; E04F11/00; E04F11/02; E04F11/104; E04F11/1043; E04H; E04H3/00; E04H3/10; E04H3/12
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
131 words
Portable steps comprising: a plurality of elongated step rungs arranged adjacent to each other in parallel side-by-side relationship; each step rung of said plurality including an elongated rigid member intended to be stepped upon incorporating a pair of ground engaging spikes at each end of said member for penetrating into the ground for a given length; an adjustable gauge movably carried on said spikes adapted to engage with the ground to limit penetration of said spikes therein; means for pivotally coupling said spikes at each end of said member so as to swing between a stowed position and an operative position for penetrating the ground; and recesses provided in each end of said member for insertably receiving said spikes and intended to be occupied by said spikes in their stowed position.
Claim 2
Dependent Claim
131 words
Portable steps comprising: a plurality of elongated step rungs arranged adjacent to each other in parallel side-by-side relationship; each step rung of said plurality including an elongated rigid member intended to be stepped upon incorporating a pair of ground engaging spikes at each end of said member for penetrating into the ground for a given length; an adjustable gauge movably carried on said spikes adapted to engage with the ground to limit penetration of said spikes therein; means for pivotally coupling said spikes at each end of said member so as to swing between a stowed position and an operative position for penetrating the ground; and recesses provided in each end of said member for insertably receiving said spikes and intended to be occupied by said spikes in their stowed position.
Claim 3
Dependent Claim
31 words
The invention as defined in claim 1 wherein: said recesses correspond to the shape and configuration of said spikes so that said spikes nest within said recesses in said stowed position.
References Cited (Backward Citations)
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Cited
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US2619154A
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US4125175A
Cited
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Cited
US4445591A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-06-03 | 1988-12-03 | 1989-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-03 | 1992-12-03 | 1993-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-03 | 1996-12-03 | 1997-06-04 | $7700.00 | Window Closed / Lapsed |