Patent US4514461A successfully refreshed from Google Patents.
US4514461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fragrance impregnated fabric
Assignee: Individual
•
Filing: 1981-08-10
•
Granted: 1985-04-30
•
Expires: 2001-08-10
Abstract
Abstract This invention is a fabric impregnated with micron-size bubbles in the form of fragile capsules within the interstices between the strands inside the body of the fabric by spraying the capsules in combination with a liquid binder and then putting the fabric through a set of rollers, the invention being that the micron-size bubbles are so bonded completely within the interior of the fabric that when rubbed, certain of the bubbles break and release the fragrance from the broken capsules, none of the capsules being on the outside of the fabric surface.
Inventors
- 👤 Yen-Kong Woo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:49
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/02; A61K8/0208; A61K8/11; A61L; A61L9/00; A61L9/015; A61L9/04; A61L9/12; A61Q; A61Q13/00; B; B01; B01J; B01J13/00; B01J13/02; B01J13/025; D; D06; D06M; D06M13/00; D06M13/005; D06M23/00; D06M23/12; A61K2800/00; A61K2800/40; A61K2800/41; A61K2800/412; Y; Y10; Y10S; Y10S428/00; Y10S428/905; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249994; Y10T428/249995; Y10T428/249997; Y10T428/25; Y10T442/00; Y10T442/20; Y10T442/2303
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A fabric having an impregnation of micro-sized capsules; said capsules being formed by a fragrance emitting core encapsules in a micro-sized container of sufficient strength to resist breakage under normal handling of the fabric but sufficiently fragile to rupture under suitably exerted hand pressure to release said fragrance; said impregnation having the characteristic of being sprayed with said capsules in company with a liquid binder by a forceful spray to insure complete and uniform penetration of said fabric by said capsules; said fabric having the characteristic of having passed lightly between heated pressure rollers to insure absence of any capsules on its surface thus providing a smooth surface on said fabric.
Claim 2
Dependent Claim
111 words
A fabric having an impregnation of micro-sized capsules; said capsules being formed by a fragrance emitting core encapsules in a micro-sized container of sufficient strength to resist breakage under normal handling of the fabric but sufficiently fragile to rupture under suitably exerted hand pressure to release said fragrance; said impregnation having the characteristic of being sprayed with said capsules in company with a liquid binder by a forceful spray to insure complete and uniform penetration of said fabric by said capsules; said fabric having the characteristic of having passed lightly between heated pressure rollers to insure absence of any capsules on its surface thus providing a smooth surface on said fabric.
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) | 1988-04-29 | 1988-10-29 | 1989-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-29 | 1992-10-29 | 1993-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-29 | 1996-10-29 | 1997-04-30 | $7700.00 | Window Closed / Lapsed |