US4067075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inflatable stretcher
Assignee: Individual
•
Filing: 1973-10-23
•
Granted: 1978-01-10
•
Expires: 1993-10-23
Abstract
Abstract The inflatable stretcher comprises a top structure having a plurality of herringbone pattern inflatable compartments, a bottom pad having a layer construction including reinforcing cords, a plurality of handles which project from the terminal side of the structure and which may be connected to aforesaid reinforcing cords, and an inflating stem.
Inventors
- 👤 Kenneth L. Leathers
- 👤 T. J. Botner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:29
CPC Classifications
A; A61; A61G; A61G1/00; Y; Y10; Y10S; Y10S128/00; Y10S128/20
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
80 words
An inflatable stretcher, comprising: a top structure being fabricated of a suitably flexible air tight material and including a plurality of inflatable compartments, each of said compartments issuing to each side of the longitudinal center line of said stretcher at opposing angles in a herringbone-like pattern, said compartments communicating with each other to inflate from a single inflating stem; a bottom pad being laminated to said top structure; and handles fastened to the terminal edges at intervals from said stretcher.
Claim 2
Dependent Claim
80 words
An inflatable stretcher, comprising: a top structure being fabricated of a suitably flexible air tight material and including a plurality of inflatable compartments, each of said compartments issuing to each side of the longitudinal center line of said stretcher at opposing angles in a herringbone-like pattern, said compartments communicating with each other to inflate from a single inflating stem; a bottom pad being laminated to said top structure; and handles fastened to the terminal edges at intervals from said stretcher.
Claim 3
Dependent Claim
35 words
The apparatus of claim 1 wherein said bottom pad is provided with reinforcing cords disposed diagonally to said pad which meet in a criss-cross pattern and wherein said handles are fastened to said reinforcing cords.
Claim 4
Dependent Claim
26 words
The apparatus of claim 2 wherein said bottom pad is fabricated as a laminated structure of layers wherein said reinforcing cords are laminated between said layers.
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) | 1981-01-09 | 1981-07-11 | 1982-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-09 | 1985-07-11 | 1986-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-09 | 1989-07-11 | 1990-01-10 | $7700.00 | Window Closed / Lapsed |