Patent US4830208A successfully refreshed from Google Patents.
US4830208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tamper-evident container-closure assembly
Assignee: West Pharmaceutical Services Inc
•
Filing: 1988-01-19
•
Granted: 1989-05-16
•
Expires: 2008-01-19
Abstract
Abstract A tamper-proof ring for securing a closure over the open end of a container. The closure and container has a projection engageable by the ring which comprises an annular member which before application to a container-closure assembly has a generally cylindrical section of a diameter slightly greater than the greatest transverse dimension of the container. The closure projection and a radially inwardly directed flange at one end of the cylindrical section define a plurality of circumferentially spaced, generally axial score lines extending from the edge of the cylindrical section opposite the one end and terminates at the juncture of the flange and cylindrical section.
Inventors
- 👤 Richard C. Osting
- 👤 William A. Conard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:34
CPC Classifications
B; B65; B65D; B65D55/00; B65D55/02; B65D55/06; B65D55/08; B65D55/0818; B65D55/0836; B65D55/0845; Y; Y10; Y10T; Y10T292/00; Y10T292/20; Y10T292/205; Y10T292/207
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
128 words
A tamper-proof ring for securing a closure over the open end of a container having a radial projection which lies closely adjacent the lower terminal edge of the closure when the closure is fully seated on the container in the closed position comprising a generally cylindrical body portion or sidewall, a continuous radially inwardly directed circumferentially extending upper flange devoid of any score line engaging over a bead on the closure, the body portion having a lower terminal edge constituting means for forming a radially inwardly directed lower flange engageable under the radial projection on the container and means defining at least two score lines substantially diametrically opposed and extending from the juncture of the upper flange and body portion to the lower edge of the body portion.
Claim 2
Dependent Claim
128 words
A tamper-proof ring for securing a closure over the open end of a container having a radial projection which lies closely adjacent the lower terminal edge of the closure when the closure is fully seated on the container in the closed position comprising a generally cylindrical body portion or sidewall, a continuous radially inwardly directed circumferentially extending upper flange devoid of any score line engaging over a bead on the closure, the body portion having a lower terminal edge constituting means for forming a radially inwardly directed lower flange engageable under the radial projection on the container and means defining at least two score lines substantially diametrically opposed and extending from the juncture of the upper flange and body portion to the lower edge of the body portion.
Claim 3
Dependent Claim
20 words
A tamper-evident band as claimed in claim 1 including four circumferentially equi-spaced score lines about the periphery of the band.
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) | 1992-05-15 | 1992-11-14 | 1993-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-15 | 1996-11-14 | 1997-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-15 | 2000-11-14 | 2001-05-16 | $7700.00 | Window Closed / Lapsed |