Patent US4056270A successfully refreshed from Google Patents.
US4056270A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Demountable boat trailer step
Assignee: Individual
•
Filing: 1976-07-02
•
Granted: 1977-11-01
•
Expires: 1996-07-02
Abstract
Abstract A demountable boat trailer step including a foot plate having a pair of parallel slots adjacent each end and running substantially the full width of the plate, a plurality of bolts, a pair of clamp bars, and a plurality of nuts. The foot plate rests on the top surface of a boat trailer frame member and is demountably attached by means of bolts extending through the slots and engaging clamp bars contacting the undersurface of the frame member. Slots in the foot plate permit mounting on various sizes of frame members. Adapters are provided for attachment of the step to cylindrical frame members.
Inventors
- 👤 Kenneth Greenfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:18
CPC Classifications
B; B60; B60R; B60R3/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
134 words
A demountable boat trailer step, which comprises: a substantially rectangular foot plate having oppositely disposed planar surfaces, the bottom surface of said plate engaging the top surface of a boat trailer frame member, said plate having a pair of parallel slots extending substantially the full width of said plate and adapted to receive bolts for allowing horizontally transverse movement of said plate relative to the frame member; a plurality of bolts extending through the slots and having head portions contacting the top surface of said foot plate; a pair of clamp bars, each having a plurality of holes, equally spaced, through which said bolts extend, said clamp bars adapted to engage the underside of a trailer frame member; and means engaging the ends of said bolts for securing said clamp bars to said bolts.
Claim 2
Dependent Claim
134 words
A demountable boat trailer step, which comprises: a substantially rectangular foot plate having oppositely disposed planar surfaces, the bottom surface of said plate engaging the top surface of a boat trailer frame member, said plate having a pair of parallel slots extending substantially the full width of said plate and adapted to receive bolts for allowing horizontally transverse movement of said plate relative to the frame member; a plurality of bolts extending through the slots and having head portions contacting the top surface of said foot plate; a pair of clamp bars, each having a plurality of holes, equally spaced, through which said bolts extend, said clamp bars adapted to engage the underside of a trailer frame member; and means engaging the ends of said bolts for securing said clamp bars to said bolts.
Claim 3
Dependent Claim
21 words
The demountable boat trailer step as defined in claim 1, wherein said foot plate is formed in part of expanded metal.
Claim 4
Dependent Claim
145 words
The demountable boat trailer step as defined in claim 1, further comprising a pair of frame adapters for attaching the step to a cylindrical boat trailer frame member, one of said adapters including a contact plate have a planar top surface engaging the bottom surface of said foot plate and a semicircular support member downwardly depending from the bottom surface of said contact plate, the interior surface of said support member adapted to receive and make substantial contact with the upper surface of the cylindrical frame member; the other adapter including a contact plate having a planar bottom surface engaging the top surface of said clamp bars, and a semicircular support member upwardly extending from the top surface of said contact plate, the interior surface of said support member adapted to receive and make substantial contact with the bottom surface of the cylindrical frame member.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-31 | 1981-05-02 | 1981-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-31 | 1985-05-02 | 1985-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-31 | 1989-05-02 | 1989-11-01 | $7700.00 | Window Closed / Lapsed |