US3623744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible trailer apparatus
Assignee: BERMACO ENTERPRISES
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Filing: 1969-12-11
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Granted: 1971-11-30
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Expires: 1989-12-11
Abstract
Abstract A collapsible trailer assembly including a plurality of lightweight rigid components which, when assembled in a predetermined order, interlock to form the superstructure of a trailer vehicle which can be fully assembled by a person of average strength and dexterity without the use of tools and without the use of bolts, screws or other ordinary fastening means.
Inventors
- 👤 Melvin C Bertness
- 👤 Arnold E Lyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:07
CPC Classifications
B; B62; B62D; B62D63/00; B62D63/06; B62D63/061
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
130 words
A collapsible trailer assembly, comprising: an axle assembly; a pair of mounting members affixed to said axle assembly in spaced-apart relationship, each of said mounting members including a first coupling element; a pair of elongated side frame members, each side frame member including, a second coupling element disposed intermediate the ends thereof, a third coupling element disposed at one end thereof, and a fourth coupling element disposed at the other end thereof, said second coupling elements matingly engaging Said first coupling elements; a rear frame member including fifth coupling elements matingly engaging said third coupling elements; a front frame member including sixth coupling elements matingly engaging said fourth coupling elements; and first locking means for locking said front frame member and said rear frame member to said side frame members.
Claim 2
Dependent Claim
130 words
A collapsible trailer assembly, comprising: an axle assembly; a pair of mounting members affixed to said axle assembly in spaced-apart relationship, each of said mounting members including a first coupling element; a pair of elongated side frame members, each side frame member including, a second coupling element disposed intermediate the ends thereof, a third coupling element disposed at one end thereof, and a fourth coupling element disposed at the other end thereof, said second coupling elements matingly engaging Said first coupling elements; a rear frame member including fifth coupling elements matingly engaging said third coupling elements; a front frame member including sixth coupling elements matingly engaging said fourth coupling elements; and first locking means for locking said front frame member and said rear frame member to said side frame members.
Claim 3
Dependent Claim
29 words
A collapsible trailer assembly as recited in claim 1 and further comprising a crossmember assembly including second locking means for locking said side frame members to said mounting members.
Claim 4
Dependent Claim
50 words
A collapsible trailer assembly as recited in claim 1, wherein said front frame member and said rear frame member each include seventh coupling elements, and said first locking means includes a pair of side rails having eighth coupling elements at each end thereof for matingly engaging said seventh coupling elements.
Claim 5
Dependent Claim
29 words
A collapsible trailer assembly as recited in claim 3, and further comprising a front rail including second locking means for locking said side rails to said front frame member.
Claim 6
Dependent Claim
32 words
A collapsible trailer assembly as recited in claim 4, and further comprising a pair of light mounting members including third locking means for locking said side rails to said rear frame member.
Claim 7
Dependent Claim
51 words
A collapsible trailer assembly as recited in claim 5, wherein at least one of said light mounting members, one of said side frame members, and one of said front frame members include interconnectable electrical cables for providing electrical communications between the front end and the rear end of said trailer assembly.
Claim 8
Dependent Claim
39 words
A collapsible trailer assembly as recited in claim 3, and further comprising a pair of fenders each including means matingly engaging said side frame members, said side rails being operative to lock said fenders to said side frame members.
Claim 9
Dependent Claim
45 words
A collapsible trailer assembly as recited in claim 3, and further comprising a plurality of elongated cross-frame members including means at each end matingly engaging said side frame members, said side rails being additionally operative to lock said cross-frame members to said side frame members.
Claim 10
Dependent Claim
40 words
A collapsible trailer assembly as recited in claim 8, wherein at least one of said cross-frame members includes means specially adapted to facilitate the loading and carriage of a specialized piece of equipment to be carried by said trailer assembly.
Claim 11
Dependent Claim
22 words
A collapsible trailer assembly as recited in claim 1, and further comprising a trailer hitch assembly coupled to said front frame member.
Claim 12
Dependent Claim
21 words
A collapsible trailer assembly as recited in claim 1 and further comprising a wheel assembly coupled to said front frame member.
Claim 13
Dependent Claim
20 words
A collapsible trailer assembly as recited in claim 1 and further comprising an enclosure means coupled to said frame members.
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) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |