US3228790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nonwoven fabric containing polyolefin fibers bonded together with a mixture of polyolefin and acrylic resins
Assignee: Johnson and Johnson
•
Filing: 1961-05-26
•
Granted: 1966-01-11
•
Expires: 1981-05-26
Abstract
No abstract record available.
Inventors
- 👤 Fred H Sexsmith
- 👤 Frank A Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:58
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/227; D04; D04H; D04H1/00; D04H1/40; D04H1/58; D04H1/587; D04H1/60; D06M15/263; D06M15/267; Y; Y10; Y10S; Y10S8/00; Y10S8/09; Y10T; Y10T428/00; Y10T428/25; Y10T428/254; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T442/00; Y10T442/20; Y10T442/2861; Y10T442/291; Y10T442/2918
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A BONDED NONWOVEN FABRIC COMPRISING A LAYER OF OVERLAPPING, INTERSECTING FIBERS AT LEAST 5% OF WHICH ARE POLYOLEFIN FIBERS AND A BONDING AGENT BONDING SAID FIBERS TOGETHER TO FORM A NONWOVEN FABRIC, SAID BONDING AGENT CONSISTING ESSENTIALLY OF : FROM ABOUT 20% TO ABOUT 80% BY WEIGHT OF A WATER-INSOLUBLE POLYOLEFIN RESIN IN THE FORM OF PARTICLES HAVING AN AVERAGE PARTICLE DIAMETER OF LESS THAN ABOUT 100 MICRONS AND FROM ABOUT 80% TO ABOUT 20% BY WEIGHT OF AN ACRYLIC RESIN SELECTED FROM THE GROUP CONSISTING OF POLYMERS, COPOLYMERS AND MIXTURES THEREOF OF THE ALKYL ESTERS OF ACRYLIC ACID WHEREIN SAID ALKYL GROUPS CONTAIN FROM 1 TO 8 CARBON ATOMS.
Claim 2
Dependent Claim
110 words
A BONDED NONWOVEN FABRIC COMPRISING A LAYER OF OVERLAPPING, INTERSECTING FIBERS AT LEAST 5% OF WHICH ARE POLYOLEFIN FIBERS AND A BONDING AGENT BONDING SAID FIBERS TOGETHER TO FORM A NONWOVEN FABRIC, SAID BONDING AGENT CONSISTING ESSENTIALLY OF : FROM ABOUT 20% TO ABOUT 80% BY WEIGHT OF A WATER-INSOLUBLE POLYOLEFIN RESIN IN THE FORM OF PARTICLES HAVING AN AVERAGE PARTICLE DIAMETER OF LESS THAN ABOUT 100 MICRONS AND FROM ABOUT 80% TO ABOUT 20% BY WEIGHT OF AN ACRYLIC RESIN SELECTED FROM THE GROUP CONSISTING OF POLYMERS, COPOLYMERS AND MIXTURES THEREOF OF THE ALKYL ESTERS OF ACRYLIC ACID WHEREIN SAID ALKYL GROUPS CONTAIN FROM 1 TO 8 CARBON ATOMS.
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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) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |