EP 0548838 A3 19930908 - TAMPER EVIDENT CONTAINER CLOSURE
Title (en)
TAMPER EVIDENT CONTAINER CLOSURE
Publication
Application
Priority
US 81273791 A 19911223
Abstract (en)
[origin: EP0548838A2] A tamper evident closure for a container has a seal member which is in a concave or convex condition to show closure integrity. The seal is visible through an opening in the cover of the container. Filling the container under pressure which is higher or lower than atmospheric produces the distention or contraction of the seal member that evidences that no tampering or leakage has occurred. <IMAGE>
IPC 1-7
IPC 8 full level
B65D 79/00 (2006.01)
CPC (source: EP US)
B65D 79/0087 (2020.05 - EP US)
Citation (search report)
- [X] US 4122964 A 19781031 - MORRIS NEAL R
- [X] US 4852753 A 19890801 - OCHS CHARLES S [US]
- [X] US 4721219 A 19880126 - DULLABAUN PAUL W [US], et al
- [A] GB 2130565 A 19840606 - PATENT DEV INTERNATIONAL LTD
- [A] US 5057365 A 19911015 - FINKELSTEIN HARVEY [US], et al
- [A] FR 2572708 A1 19860509 - JUJO PAPER CO LTD [JP]
- [A] DE 4020371 C1 19911219
- [A] EP 0269920 A1 19880608 - ANCHOR HOCKING CORP [US]
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU NL PT SE
DOCDB simple family (publication)
EP 0548838 A2 19930630; EP 0548838 A3 19930908; EP 0548838 B1 19980722; AT E168649 T1 19980815; CA 2084389 A1 19930624; CA 2084389 C 20040525; DE 69226341 D1 19980827; DE 69226341 T2 19981203; DK 0548838 T3 19990201; ES 2118781 T3 19981001; GR 3027783 T3 19981130
DOCDB simple family (application)
EP 92121583 A 19921218; AT 92121583 T 19921218; CA 2084389 A 19921202; DE 69226341 T 19921218; DK 92121583 T 19921218; ES 92121583 T 19921218; GR 980401961 T 19980831