Patent US3809221A successfully refreshed from Google Patents.
US3809221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rupturable blister pill package with safety backing
Assignee: Individual
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Filing: 1972-10-10
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Granted: 1974-05-07
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Expires: 1992-10-10
Abstract
Abstract A rupturable press-through blister type medicament or pill package is ''''childproofed'''' by securing a strong flexible polymeric backing sheet, such as polyethylene terephthalate, over the rupturable sheet in such a manner that the pill cannot be forced through the package unless the backing sheet is first peeled off.
Inventors
- 👤 N Compere
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:41
CPC Classifications
B; B65; B65D; B65D75/00; B65D75/28; B65D75/30; B65D75/32; B65D75/325; B65D75/327; B65D2215/00; B65D2215/04; B65D2575/00; B65D2575/28; B65D2575/30; B65D2575/32; B65D2575/3209; B65D2575/3218; B65D2575/3227; B65D2575/3236; B65D2575/3245; B65D2585/00; B65D2585/56; B65D75/26; Y; Y10; Y10S; Y10S206/00; Y10S206/82
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
146 words
A protective childproof package comprising: a first sheet having at least one flexible blister which forms a compartment, said at least one blister being adapted to receive a medicament; said first sheet having a line of weakening along one edge; a second sheet of rupturable material, secured to the first sheet, closing and sealing said compartment formed by the blister in the first sheet; and having a line of weakening along one edge so that when secured to the first sheet, the line of weakening in said first and second sheets are on the same edge of the package; and a third imperforate sheet seelably secured to the second sheet which third sheet has sufficient strength so that it can neither be ruptured nor forced out of engagement with the second sheet when force is applied to the medicament from the blister side of the package.
Claim 2
Dependent Claim
146 words
A protective childproof package comprising: a first sheet having at least one flexible blister which forms a compartment, said at least one blister being adapted to receive a medicament; said first sheet having a line of weakening along one edge; a second sheet of rupturable material, secured to the first sheet, closing and sealing said compartment formed by the blister in the first sheet; and having a line of weakening along one edge so that when secured to the first sheet, the line of weakening in said first and second sheets are on the same edge of the package; and a third imperforate sheet seelably secured to the second sheet which third sheet has sufficient strength so that it can neither be ruptured nor forced out of engagement with the second sheet when force is applied to the medicament from the blister side of the package.
Claim 3
Dependent Claim
17 words
A protective childproof package as defined in claim 1 wherein the second sheet is a metal foil.
Claim 4
Dependent Claim
15 words
A protective childproof package as defined in claim 1 wherein the second sheet is paper.
Claim 5
Dependent Claim
15 words
A protective childproof package as defined in claim 1 wherein the first sheet is polystyrene.
Claim 6
Dependent Claim
16 words
A protective childproof package as defined in claim 1 wherein the first sheet is polyvinyl chloride.
Claim 7
Dependent Claim
16 words
A protective childproof package as defined in claim 1 wherein the third sheet is polyethylene terephthalate.
Claim 8
Dependent Claim
29 words
A protective childproof package as defined in claim 1 wherein the line of weakening in the first and second sheets are a line of intermittent perforations in said sheets.
Claim 9
Dependent Claim
32 words
A protective childproof package as defined in claim 1 wherein the line of weakening in the first and second sheets are a line of thinness in both the first and second sheets.
Claim 10
Dependent Claim
21 words
A protective childproof package as defined in claim 1 wherein the third sheet is secured to the second sheet by heat-sealing.
Claim 11
Dependent Claim
32 words
A protective childproof package as defined in claim 7 wherein the third sheet can be peeled from the second sheet after severing the first and second sheets along the line of weakening.
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) | 1977-05-06 | 1977-11-05 | 1978-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-06 | 1981-11-05 | 1982-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-06 | 1985-11-05 | 1986-05-07 | $7700.00 | Window Closed / Lapsed |