US2747756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rubber closure
Assignee: Abbott Laboratories
•
Filing: 1952-07-10
•
Granted: 1956-05-29
•
Expires: 1972-07-10
Abstract
No abstract record available.
Inventors
- 👤 Jr William L Hartop
- 👤 Jr Edward J Morrisey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:22
CPC Classifications
A; A61; A61J; A61J1/00; A61J1/14; A61J1/1462; B; B65; B65D; B65D51/00; B65D51/002; A61J1/1468
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
71 words
A CLOSURE MEMBER FOR A PHARMACEUTICAL CONTAINER WHICH COMPRISES A CONTAINER CLOSURE MEMBER COMPRISED ESSENTIALLY OF RUBBER AND ADAPTED TO FORM A SEALING ENGAGEMENT WITH THE SAID CONTAINER AND HAVING ON THE SURFACE ADAPTED TO BE IN DIRECT COMMUNICATION WITH THE INTERIOR OF THE SAID CONTAINER AN INSOLUBLE FIRMLY ADHERENT COATING OF A POLYMERIZED LINEAR SYNTHETIC METHYL POLYCARBONAMIDE HAVING A MINOR PROPORTION OF THE AMIDE GROUPS THEREOF SUBSTITUTED WITH ALKOXY GROUPS.
References Cited (Backward Citations)
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Cited
US2191495A
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US2302557A
Cited
US2322779A
Cited
US2438149A
Cited
US2573637A
Cited
US2649090A
Cited
US2629379A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |