Patent US3708886A successfully refreshed from Google Patents.
US3708886A
Expired / Lapsed
US
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Lyoflo-stopper
Assignee: IMS HOLDINGS A CORP OF
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Filing: 1970-11-09
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Granted: 1973-01-09
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Expires: 1990-11-09
Abstract
Abstract This patent describes a novel resilient lyophilizing stopper for use in a vial or other medicament container having an open end, said stopper comprising an upper portion having one or more sealing rings adapted to form a seal on the inside walls of said vial and act as a piston therein, and a lower portion comprising a series of interruptions around the periphery of the lower portion, said interruptions forming a force compression fit with the walls of the vial and the spaces between the interruptions being adapted to provide a gas passage from the interior of the vial to the exterior when said sealing rings are held beyond the end of the vial by said interruptions.
Inventors
- 👤 R Ogle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:21
CPC Classifications
B; B65; B65D; B65D51/00; B65D51/24; B65D51/241
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2198752A
Cited
US2353986A
Cited
GB701888A
Cited
US3199216A
Cited
DE1198294B
Cited
US3286366A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-09 | 1976-07-10 | 1977-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-09 | 1980-07-10 | 1981-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-09 | 1984-07-10 | 1985-01-09 | $7700.00 | Window Closed / Lapsed |