Patent US4031572A successfully refreshed from Google Patents.
US4031572A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemical toilet cabana shell section
Assignee: POLY SAN CORP
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Filing: 1975-12-08
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Granted: 1977-06-28
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Expires: 1995-12-08
Abstract
Abstract A chemical toilet cabana comprising a plurality of initially identical shell sections, each having a dome-like roof, side walls terminating in a bell-like enlarged lower end and a base flange extending outwardly from the enlarged lower end of the side wall. The base flange is removed from a first shell section to form a cabana top. The dome-like roof is removed from a second shell section to form a cabana base and both the dome-like roof and the base flange are removed from other shell sections to form intermediate cabana shell members. The sections are stacked one upon the other with the wall of a section fitted within the enlarged lower end of the section immediately thereabove and with the walls of the sections substantially in vertical alignment. The base flange of the bottom section is fastened to a base skid which includes a filler material for weight and stability of the cabana.
Inventors
- 👤 George W. Harding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:55
CPC Classifications
E; E04; E04H; E04H1/00; E04H1/12; E04H1/1205; E04H1/1216; A; A47; A47K; A47K11/00; A47K11/02; Y; Y02; Y02A; Y02A50/00; Y02A50/30
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
110 words
A shell adapted to be used as a top, intermediate, or bottom member of a portable enclosure, and molded of a rigid plastic-like, thermally stable material, comprising: a dome-like roof; a side wall extending downwardly from said roof and terminating in a bell-like enlarged lower end; and a base flange extending outwardly from the enlarged lower end of said side wall; whereby said dome-like roof may be removed to form a base member of said enclosure, said base flange may be removed to form a top member of said enclosure, and both said dome-like roof and said base flange may be removed to form an intermediate member of said enclosure.
Claim 2
Dependent Claim
110 words
A shell adapted to be used as a top, intermediate, or bottom member of a portable enclosure, and molded of a rigid plastic-like, thermally stable material, comprising: a dome-like roof; a side wall extending downwardly from said roof and terminating in a bell-like enlarged lower end; and a base flange extending outwardly from the enlarged lower end of said side wall; whereby said dome-like roof may be removed to form a base member of said enclosure, said base flange may be removed to form a top member of said enclosure, and both said dome-like roof and said base flange may be removed to form an intermediate member of said enclosure.
Claim 3
Dependent Claim
22 words
The invention as defined in claim 1, wherein said side wall includes a cut out to receive a door or the like.
Claim 4
Dependent Claim
19 words
The invention as defined in claim 1, wherein said side wall is slotted to provide ventilation for said enclosure.
Claim 5
Dependent Claim
151 words
A shell adapted to be used as a top, intermediate or bottom member of a portable toilet enclosure comprising: a dome-like roof; and a side wall extending downwardly from said roof and terminating in a bell-like enlarged louver; whereby when the dome-like roof of a second shell is removed and the second shell vertically aligned beneath the first shell with the side wall of the second shell fitted within the louver of the first shell, the louver of the first shell prevents water from entering the second shell at the region where the shells are fitted together and further the louver of the first shell and the side wall of the second shell taken together to form a sturdy, double-thickness structure at the region where the shells are fitted together and at which region the louver forms a support to which the side wall of the second shell may be fastened.
Claim 6
Dependent Claim
151 words
A shell adapted to be used as a top, intermediate or bottom member of a portable toilet enclosure comprising: a dome-like roof; and a side wall extending downwardly from said roof and terminating in a bell-like enlarged louver; whereby when the dome-like roof of a second shell is removed and the second shell vertically aligned beneath the first shell with the side wall of the second shell fitted within the louver of the first shell, the louver of the first shell prevents water from entering the second shell at the region where the shells are fitted together and further the louver of the first shell and the side wall of the second shell taken together to form a sturdy, double-thickness structure at the region where the shells are fitted together and at which region the louver forms a support to which the side wall of the second shell may be fastened.
Claim 7
Dependent Claim
37 words
The invention as defined in claim 4, wherein said first shell further includes a flat base flange extending radially outwardly from said enlarged louver, said first shell having an open bottom radially interiorly of said side wall.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-06-27 | 1980-12-27 | 1981-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-27 | 1984-12-27 | 1985-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-27 | 1988-12-27 | 1989-06-28 | $7700.00 | Window Closed / Lapsed |