US3868955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aldehyde polysaccharide dressings
Assignee: Personal Products Co
•
Filing: 1973-10-05
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Granted: 1975-03-04
•
Expires: 1993-10-05
Abstract
Abstract A dressing for absorbing body fluids is provided which greatly reduces the unpleasant odors associated with such products. The dressing comprises a pad of absorbent material in which is incorporated a quantity of aldehyde polysaccharide. The aldehyde polysaccharide may be, for example, oxidized cellulose fibers or oxidized starch. Preferably, the aldehyde polysaccharide is distributed in the absorbent pad so that a larger portion is present in that portion of the pad in which the body fluids first enter.
Inventors
- 👤 Fred Harold Steiger
- 👤 Judith Ann Siragusa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:26
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/53; A61F13/01; A61F13/01008; A61L; A61L15/00; A61L15/16; A61L15/22; A61L15/28; A61F13/84; A61F13/8405; A61F2013/00361; A61F2013/00727; A61F2013/00731
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
26 words
IN A PRODUCT FOR ABSORBING BODY FLUIDS COMPRISING AN ABSORBENT BODY AND DEODORIZING PROPERITIES, THE IMPROVEMENT WHEREIN SAID PRODUCT COMPRISES ALDEHYDE POLYSACCHARIDE HAVING AMINE DEODORIZING PROPERITIES.
Claim 2
Dependent Claim
26 words
IN A PRODUCT FOR ABSORBING BODY FLUIDS COMPRISING AN ABSORBENT BODY AND DEODORIZING PROPERITIES, THE IMPROVEMENT WHEREIN SAID PRODUCT COMPRISES ALDEHYDE POLYSACCHARIDE HAVING AMINE DEODORIZING PROPERITIES.
Claim 3
Dependent Claim
22 words
The product of claim 1 wherein said aldehyde polysaccharide has a percent conversion to the aldehyde form of at least 5 percent.
Claim 4
Dependent Claim
15 words
The product of claim 2 wherein said percent conversion is at least about 30 percent.
Claim 5
Dependent Claim
21 words
The product of claim 2 wherein said absorbent body comprises at least about 5 percent by weight of said aldehyde polysaccharide.
Claim 6
Dependent Claim
21 words
The product of claim 4 wherein said absorbent body comprises at least about 25 percent by weight of said aldehyde polysaccharide.
Claim 7
Dependent Claim
28 words
The product of claim 1 wherein at least 65 percent by weight of said aldehyde polysaccharide is distributed in the top half, by weight, of said absorbent body.
Claim 8
Dependent Claim
28 words
The product of claim 6 wherein at least 50 percent by weight of said aldehyde polysaccharide is distributed in the top one-third by weight of said absorbent body.
Claim 9
Dependent Claim
13 words
The product of claim 1 wherein said aldehyde polysaccharide comprises aldehyde cellulose fibers.
Claim 10
Dependent Claim
36 words
The product of claim 8 wherein said aldehyde cellulose fibers have a percent conversion to the aldehyde form of at least 5 percent and comprise at least about 5 percent by weight of said absorbent body.
Claim 11
Dependent Claim
20 words
The product of claim 9 wherein said aldehyde cellulose fibers have a percent conversion of at least about 30 percent.
Claim 12
Dependent Claim
12 words
The product of claim 1 wherein said aldehyde polysaccharide comprises a starch.
Claim 13
Dependent Claim
31 words
The product of claim 11 wherein said aldehyde starch has a percent conversion of at least 5 percent and comprises at least about 5 percent by weight of said absorbent body.
Claim 14
Dependent Claim
19 words
The product of claim 12 wherein said aldehyde starch has a percent conversion of at least about 30 percent.
Claim 15
Dependent Claim
16 words
The product of claim 1 wherein said aldehyde polysaccharide is in the form of alloy fibers.
Claim 16
Dependent Claim
10 words
The product of claim 1 further comprising an alkali salt.
Claim 17
Dependent Claim
23 words
The product of claim 15 wherein said alkali salt is present in quantities of about 0.05 grams per gram of total absorbent body.
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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) | 1978-03-03 | 1978-09-02 | 1979-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-03 | 1982-09-02 | 1983-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-03 | 1986-09-02 | 1987-03-04 | $7700.00 | Window Closed / Lapsed |