Patent US4715536A successfully refreshed from Google Patents.
US4715536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dispenser for the slow release of volatile products
Assignee: Montedison SpA
•
Filing: 1986-08-26
•
Granted: 1987-12-29
•
Expires: 2006-08-26
Abstract
Abstract Dispenser for the slow release of volatile pheromones comprising an adsorbing substrate of fibrils and/or fibers or their mixtures containing the active ingredient adsorbed or dispersed therein and coated with a layer which is impermeable to pheromones.
Inventors
- 👤 Amedeo Capizzi
- 👤 Pia Spinelli
- 👤 Emilio Arsura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:20
CPC Classifications
A; A01; A01N; A01N25/00; A01N25/18; A61; A61L; A61L9/00; A61L9/015; A61L9/04; A61L9/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A multilayer dispenser, provided with openings, having a size of 2 cm on a side and a thickness ranging between 0.4 and 2 mm, for the slow release of volatile pheromones comprising an adsorbing substrate consisting of polyethylene fibrils alone or combined with cellulose fibers containing the active ingredient adsorbed or dispersed therein and coated on the two faces with a multi-layer polyester-aluminum-polyethylene film which is impermeable to pheromones and in which the polyethylene layer is hot-welded to the substrate.
Claim 2
Dependent Claim
80 words
A multilayer dispenser, provided with openings, having a size of 2 cm on a side and a thickness ranging between 0.4 and 2 mm, for the slow release of volatile pheromones comprising an adsorbing substrate consisting of polyethylene fibrils alone or combined with cellulose fibers containing the active ingredient adsorbed or dispersed therein and coated on the two faces with a multi-layer polyester-aluminum-polyethylene film which is impermeable to pheromones and in which the polyethylene layer is hot-welded to the substrate.
References Cited (Backward Citations)
US1806149A
Cited
US3578545A
Cited
US3790081A
Cited
US4219145A
Cited
US4320873A
Cited
US4445641A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-12-28 | 1991-06-29 | 1991-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-12-28 | 1995-06-29 | 1995-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-12-28 | 1999-06-29 | 1999-12-29 | $7700.00 | Window Closed / Lapsed |