US3638786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Package for preparation and dispensing of heated foam
Assignee: EIDP Inc
•
Filing: 1969-11-12
•
Granted: 1972-02-01
•
Expires: 1989-11-12
Abstract
Abstract A package adapted for preparing and dispensing heated foam, which comprises a manually openable sealed outer container and a manually rupturable sealed inner container, said package containing A. an aqueous dispersion of a foamable composition, B. hydrogen peroxide, C. a reductant composition, D. an organic propellant selected from A. 1,2-Dichlorohexafluoropropane B. 1,2-Dichloro-1,2,2-trifluoroethane C. Perfluorodimethylcyclobutane D. 1,2-Dichloroperfluorocyclobutane WHEREIN MATERIALS (B) and (C) are isolated from each other in the separate containers of said package.
Inventors
- 👤 William Joseph Borecki
- 👤 Frederick John Gradishar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:31
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/32; B65D81/3261; B65D81/3272; A; A61; A61K; A61K8/00; A61K8/02; A61Q; A61Q5/00; A61Q5/02; A61Q9/00; A61Q9/02; C; C09; C09K; C09K3/00; C09K3/30; A61K2800/00; A61K2800/20; A61K2800/24; A61K2800/242
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
13 words
A package according to claim 1 wherein the organic propellant (D) is 1,2-dichlorohexafluoropropane.
Claim 2
Dependent Claim
13 words
A package according to claim 1 wherein the organic propellant (D) is 1,2-dichloro-1,2,2-trifluoroethane.
Claim 3
Dependent Claim
21 words
A package according to claim 1 wherein the outer container is prepared from polyethylene laminated on the outside to aluminum foil.
Claim 4
Dependent Claim
14 words
A package according to claim 1 wherein the inner container is prepared from polyethylene.
References Cited (Backward Citations)
US2655480A
Cited
US2907173A
Cited
US3354088A
Cited
GB1110557A
Cited
US3341418A
Cited
US3372839A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-31 | 1975-08-02 | 1976-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-31 | 1979-08-02 | 1980-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-31 | 1983-08-02 | 1984-02-01 | $7700.00 | Window Closed / Lapsed |