US3640831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective body pad
Assignee: Protective Pads Inc
•
Filing: 1969-12-15
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Granted: 1972-02-08
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Expires: 1989-12-15
Abstract
Abstract A protective pad made up of lamination-shaped sheets of cushioning material, each sheet having adjacent trapped air pockets with the lamination being enclosed in a moisture impervious envelope of latex or closely woven polyester fiber.
Inventors
- 👤 Lawrence J Gardner
- 👤 Donald R Cochren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:49
CPC Classifications
F; F41; F41H; F41H1/00; A; A63; A63B; A63B71/00; A63B71/08; A63B71/081; A63B2071/083; Y; Y10; Y10T; Y10T428/00; Y10T428/23; Y10T428/234; Y10T428/239; Y10T428/31504; Y10T428/31725; Y10T428/31739
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
15 words
A pad as set forth in claim 1 wherein said envelope is closely woven nylon.
Claim 2
Dependent Claim
172 words
A lightweight impact-absorbing pad for protecting a portion of the human body comprising: a. a plurality of flexible cushioning sheets laminated together to form a pad generally conforming to the external shape of the portion of the body to be protected, each of said cushioning sheets comprising first and second layers of flexible plastic material, said second layer bonded to said first layer and defining a plurality of sealed air pockets adjacent one side of said first layer, said pad comprising a first cushioning sheet, at least one additional cushioning sheet laminated thereto, the first layer of the first additional sheet being laminated to the second layer of the adjacent first sheet, and at least a second additional cushioning sheet, the second layer of said second additional cushioning sheet being laminated to the second layer of the adjacent additional cushioning sheet; and b. an envelope enclosing said plurality of flexible cushioning sheets, said envelope being comprised of a material which is substantially moisture impervious and which does not react with adhesive tape.
Claim 3
Dependent Claim
20 words
A pad as set forth in claim 3 wherein said cushioning sheets are bonded together to define a unitary lamination.
Claim 4
Dependent Claim
15 words
A pad as set forth in claim 3 wherein said envelope is closely woven nylon.
References Cited (Backward Citations)
GB625657A
Cited
US3086899A
Cited
US3008214A
Cited
US3066059A
Cited
US3142599A
Cited
US3462330A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-07 | 1975-08-09 | 1976-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-07 | 1979-08-09 | 1980-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-07 | 1983-08-09 | 1984-02-08 | $7700.00 | Window Closed / Lapsed |