US4988557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fragrance sampling device
Assignee: 3M Co
•
Filing: 1989-12-08
•
Granted: 1991-01-29
•
Expires: 2009-12-08
Abstract
Abstract Fragrance releasing pull-apart sheets can provide immediate fragrance release and transferable fragrance microcapsules by placing microcapsules between the two surfaces with a discontinuous binder, and adhering the surfaces together with the binder with the capsules in some areas and with only microcapsules present in other areas.
Inventors
- 👤 Jack W. Charbonneau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:22
CPC Classifications
B; B32; B32B; B32B7/00; B32B7/04; B32B7/06; A; A61; A61L; A61L9/00; A61L9/015; A61L9/04; A61L9/12; Y; Y10; Y10S; Y10S428/00; Y10S428/905; Y10T; Y10T428/00; Y10T428/24; Y10T428/2419; Y10T428/24215; Y10T428/24802; Y10T428/24851; Y10T428/24868; Y10T428/24876; Y10T428/24893; Y10T428/24901; Y10T428/24934; Y10T428/249921; Y10T428/249994; Y10T428/249995; Y10T428/249997
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
98 words
A liquid releasing device comprising two opposed flexible surfaces, and at least two zones between said surfaces having rupturable liquid-filled microcapsules therein, a first of said two zones having microcapsules bonded strongly to said two surfaces so that upon separation of the two surfaces said bonded microcapsules are ruptured, and a second of said two zones having microcapsules which are not bonded strongly to either surface so that upon separation of the surfaces there is little microcapsule rupturing and the remaining microcapsules in the second of the two zones can be removed from the surfaces by gentle rubbing.
Claim 2
Dependent Claim
98 words
A liquid releasing device comprising two opposed flexible surfaces, and at least two zones between said surfaces having rupturable liquid-filled microcapsules therein, a first of said two zones having microcapsules bonded strongly to said two surfaces so that upon separation of the two surfaces said bonded microcapsules are ruptured, and a second of said two zones having microcapsules which are not bonded strongly to either surface so that upon separation of the surfaces there is little microcapsule rupturing and the remaining microcapsules in the second of the two zones can be removed from the surfaces by gentle rubbing.
Claim 3
Dependent Claim
18 words
The liquid releasing device of claim 1 wherein at least one of said opposed surfaces is coated paper.
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) | 1994-01-28 | 1994-07-30 | 1995-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-01-28 | 1998-07-30 | 1999-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-01-28 | 2002-07-30 | 2003-01-29 | $7700.00 | Window Closed / Lapsed |