US4192030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Camping accessory
Assignee: Individual
•
Filing: 1978-05-26
•
Granted: 1980-03-11
•
Expires: 1998-05-26
Abstract
Abstract Camping accessory consisting of inner and outer baglike envelopes formed with corrugations and sealed together for forming an air-tight enclosure adapted to be filled with air under slight pressure.
Inventors
- 👤 Alwin E. Casson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:47
CPC Classifications
A; A45; A45F; A45F3/00; E; E04; E04H; E04H15/00; E04H15/20; E04H15/32; E04H15/324; E04H2015/202; E04H2015/204; E04H2015/208
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
100 words
Camping accessory, comprising: (a) an elongated outer envelope formed of substantially waterproof and air impermeable sheet material with a continuous edge at one end, (b) an elongated inner envelope formed of substantially air impermeable sheet material and lying within the outer envelope, said inner envelope having a continuous edge joined to the continuous edge of said outer envelope to form an airtight enclosure between the outer and inner envelopes, an inner space within said inner envelope and an opening to said inner space at said one end, and (c) a valve for inflating the enclosure with air at superatmospheric pressure.
Claim 2
Dependent Claim
100 words
Camping accessory, comprising: (a) an elongated outer envelope formed of substantially waterproof and air impermeable sheet material with a continuous edge at one end, (b) an elongated inner envelope formed of substantially air impermeable sheet material and lying within the outer envelope, said inner envelope having a continuous edge joined to the continuous edge of said outer envelope to form an airtight enclosure between the outer and inner envelopes, an inner space within said inner envelope and an opening to said inner space at said one end, and (c) a valve for inflating the enclosure with air at superatmospheric pressure.
Claim 3
Dependent Claim
27 words
Camping accessory as recited in claim 1, wherein the sheet material of which both the inner and the outer envelope is formed is a flexible polymer plastic.
Claim 4
Dependent Claim
45 words
Camping accessory as recited in claim 1, wherein the inner and outer envelopes are provided with similar extensions that are joined to form a hood, said opening remaining between the hood, on the one hand, and the inner and outer envelopes, on the other hand.
Claim 5
Dependent Claim
31 words
Camping accessory as recited in claim 3, wherein the hood has bottom, end, and top walls, as well as two side walls joining the other walls to define the said opening.
Claim 6
Dependent Claim
34 words
Camping accessory as recited in claim 4, wherein the extensions that form the hood are joined in an airtight manner, so that the interior of the hood constitutes an extension of the said enclosure.
Claim 7
Dependent Claim
32 words
Camping accessory as recited in claim 5, wherein a mosquito netting is provided to close the said opening, and fastenings are provided to fasten the netting to the edge of the opening.
Claim 8
Dependent Claim
15 words
Camping accessory as recited in claim 1, wherein the corrugations run lengthwise of the envelopes.
Claim 9
Dependent Claim
15 words
Camping accessory as recited in claim 1, wherein the corrugations run transversely of the envelopes.
Claim 10
Dependent Claim
22 words
Camping accessory as recited in claim 8, wherein an integral hood surrounds the said opening and is corrugated to render it self-supporting.
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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) | 1983-03-11 | 1983-09-10 | 1984-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-11 | 1987-09-10 | 1988-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-11 | 1991-09-10 | 1992-03-11 | $7700.00 | Window Closed / Lapsed |