Patent US1645303A successfully refreshed from Google Patents.
US4522307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Child-resistant tamper-evident closure
Assignee: Anchor Hocking Packaging Co
•
Filing: 1983-10-19
•
Granted: 1985-06-11
•
Expires: 2003-10-19
Abstract
Abstract A child resistant closure cap is described which is easily applied to a threaded container and which thereafter may not be removed without the initial removal of a tamper indicating band so that the closure is also tamper-evident.
Inventors
- 👤 Gerald E. Steiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:43
CPC Classifications
B; B65; B65D; B65D55/00; B65D55/02; B65D55/024; B65D50/00; B65D50/02; B65D50/04; B65D50/041; B65D50/043; B65D50/06; B65D2401/00; B65D2401/15; B65D2401/25
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
102 words
A tamper-indicating child resistant closure for a container having closure engaging members on its neck comprising the combination of: a cup-like outer shell with a cover and a depending skirt; a cup-like inner shell; thread-like means on said inner shell for engaging said closure engaging members, ratchet means for coupling said shells only while being turned onto the container; normally spaced friction means on the lower edges of said shells facing radially outwardly on the inner shell and radially inwardly on the outer shell for releaseably engaging said shells for cap removal; and removable means for releaseably holding said friction means disengaged.
Claim 2
Dependent Claim
102 words
A tamper-indicating child resistant closure for a container having closure engaging members on its neck comprising the combination of: a cup-like outer shell with a cover and a depending skirt; a cup-like inner shell; thread-like means on said inner shell for engaging said closure engaging members, ratchet means for coupling said shells only while being turned onto the container; normally spaced friction means on the lower edges of said shells facing radially outwardly on the inner shell and radially inwardly on the outer shell for releaseably engaging said shells for cap removal; and removable means for releaseably holding said friction means disengaged.
Claim 3
Dependent Claim
38 words
The closure as claimed in claim 1 in which said removable means comprises a tear strip removably attached to said outer shell and including means for preventing radially inward movement of the lower edge of the outer shell.
Claim 4
Dependent Claim
18 words
The closure as claimed in claim 2 in which said tear strip has a grip on one end.
Claim 5
Dependent Claim
14 words
The closure as claimed in claim 1 in which said friction means comprises knurls.
References Cited (Backward Citations)
US3837518A
Cited
US3974929A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-06-10 | 1988-12-10 | 1989-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-10 | 1992-12-10 | 1993-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-10 | 1996-12-10 | 1997-06-11 | $7700.00 | Window Closed / Lapsed |