US4634614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Devices for perfuming ambient air and enclosed spaces
Assignee: Firmenich SA
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Filing: 1984-01-09
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Granted: 1987-01-06
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Expires: 2004-01-09
Abstract
Abstract A device for perfuming ambient air or closed locals comprises a chamber having at least one polymer wall allowing the diffusion of active odoriferous substance vapors into the environning medium, the polymer wall being covered with a thin layer of paper coated with a polymer sheet to which adheres a protection sheet which is impervious to the active substance vapors. Such a device has the advantage of providing for the preservation of the active substance without any loss during prolonged periods of time before use.
Inventors
- 👤 Gunter Holzner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:27
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/10; A; A61; A61L; A61L9/00; A61L9/015; A61L9/04; A61L9/042; A61L9/12; B32B2439/00; B32B2439/40; Y; Y10; Y10S; Y10S261/00; Y10S261/88; Y10S428/00; Y10S428/905; Y10T; Y10T428/00; Y10T428/13; Y10T428/1303; Y10T428/23; Y10T428/239
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
84 words
A device for perfuming ambient air or enclosed spaces which comprises at least one chamber containing an active fragrant substance and having at least one wall made of polymeric material enabling the vapours of the active fragrant substance to diffuse into the environment, the outer surface of said polymeric wall being covered with a thin paper layer, said layer being covered with a sheet of polymeric material to which there adheres a sheet of protective material impermeable to the vapours of the active substance.
Claim 2
Independent Claim
84 words
A device for perfuming ambient air or enclosed spaces which comprises at least one chamber containing an active fragrant substance and having at least one wall made of polymeric material enabling the vapours of the active fragrant substance to diffuse into the environment, the outer surface of said polymeric wall being covered with a thin paper layer, said layer being covered with a sheet of polymeric material to which there adheres a sheet of protective material impermeable to the vapours of the active substance.
Claim 3
Dependent Claim
13 words
A device as claimed in claim 1 wherein the protective material is aluminium.
Claim 4
Dependent Claim
12 words
A device as claimed in claim 1, containing a plurality of chambers.
Claim 5
Independent Claim
108 words
A device for perfuming ambient air or enclosed spaces which comprises at least one chamber containing an active fragrant substance and having at least one wall made of polymeric material enabling the vapours of the active fragrant substance to diffuse into the environment, the outer surface of said polymeric wall being covered with a thin paper layer, said layer being covered with a sheet of polymeric material to which there adheres a sheet of protective material impermeable to the vapours of the active substance, and having grooves in the polymeric wall, thereby increasing the surface area of said wall exposed to the vapours of the active fragrant substance.
Claim 6
Independent Claim
108 words
A device for perfuming ambient air or enclosed spaces which comprises at least one chamber containing an active fragrant substance and having at least one wall made of polymeric material enabling the vapours of the active fragrant substance to diffuse into the environment, the outer surface of said polymeric wall being covered with a thin paper layer, said layer being covered with a sheet of polymeric material to which there adheres a sheet of protective material impermeable to the vapours of the active substance, and having grooves in the polymeric wall, thereby increasing the surface area of said wall exposed to the vapours of the active fragrant substance.
Claim 7
Independent Claim
94 words
A device for perfuming ambient air or enclosed spaces which comprises a plurality of chambers containing an active fragrant substance and having walls made of polymeric material enabling the vapours of the active fragrant substance to diffuse into the environment, the outer surfaces of said polymeric walls being covered with thin paper layers, said layers being covered with sheets of protective material impermeable to the vapours of the active substance, and having grooves in the polymeric walls, thereby increasing the surface areas of said walls exposed to the vapours of the active fragrant substance.
Claim 8
Independent Claim
94 words
A device for perfuming ambient air or enclosed spaces which comprises a plurality of chambers containing an active fragrant substance and having walls made of polymeric material enabling the vapours of the active fragrant substance to diffuse into the environment, the outer surfaces of said polymeric walls being covered with thin paper layers, said layers being covered with sheets of protective material impermeable to the vapours of the active substance, and having grooves in the polymeric walls, thereby increasing the surface areas of said walls exposed to the vapours of the active fragrant substance.
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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) | 1990-01-05 | 1990-07-07 | 1991-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-01-05 | 1994-07-07 | 1995-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-01-05 | 1998-07-07 | 1999-01-06 | $7700.00 | Window Closed / Lapsed |