US2845070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressed fiber absorption device and method of making
Assignee: Tambrands Inc
•
Filing: 1953-06-08
•
Granted: 1958-07-29
•
Expires: 1973-06-08
Abstract
No abstract record available.
Inventors
- 👤 Albert W Lewing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:00
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/20; A61F13/2051; A61F13/2082; A61F13/2085; A61F13/2088; Y; Y10; Y10S; Y10S604/00; Y10S604/904
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
17 words
THE METHOD OF MAKING AN ABSORBENT PAD OF ABSORBENT COTTON FIBERS, WHICH COMPRISES THE STEPS OF DIS-
Claim 2
Independent Claim
17 words
THE METHOD OF MAKING AN ABSORBENT PAD OF ABSORBENT COTTON FIBERS, WHICH COMPRISES THE STEPS OF DIS-
Claim 3
Dependent Claim
61 words
AN ABSORPTION DEVICE OF THE CHARACTER DESCRIBED FOR FLUID ABSORPTION COMPRISING AS A FLUID ABSORBING MEANS A COMPRESSED MASS OF ABSORBENT COTTON FIBERS, SAID MASS HAVING A SELF-SUSTAINED DENSITY IN THE RANGE OF APPROXIMATELY 0.3 TO 0.7 GRAM PER CUBIC CENTIMETER, AND SAID FIBERS CARRYING AT LEAST 0.1% OF A WATER SOLUBLE HYDROPHILIC PLASTICIZER THEREFOR EFFECTING STABLE COMPRESSION AT SAID DENSITY.
Claim 4
Dependent Claim
61 words
AN ABSORPTION DEVICE OF THE CHARACTER DESCRIBED FOR FLUID ABSORPTION COMPRISING AS A FLUID ABSORBING MEANS A COMPRESSED MASS OF ABSORBENT COTTON FIBERS, SAID MASS HAVING A SELF-SUSTAINED DENSITY IN THE RANGE OF APPROXIMATELY 0.3 TO 0.7 GRAM PER CUBIC CENTIMETER, AND SAID FIBERS CARRYING AT LEAST 0.1% OF A WATER SOLUBLE HYDROPHILIC PLASTICIZER THEREFOR EFFECTING STABLE COMPRESSION AT SAID DENSITY.
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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) | 1961-07-28 | 1962-01-27 | 1962-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-28 | 1966-01-27 | 1966-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-28 | 1970-01-27 | 1970-07-29 | $7700.00 | Window Closed / Lapsed |