US3371811A
Expired / Lapsed
US
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Assignee: Corning Glass Works
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Filing: 1964-11-20
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Granted: 1968-03-05
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Expires: 1984-11-20
Abstract
No abstract record available.
Inventors
- 👤 William H Mcknight
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:22
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/02; B65D41/10; B65D41/14
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
156 words
AN IMPROVED CLOSURE FOR OPEN MOUTH CONTAINERS WHICH ARE VACUUM PACKED AND HERMETICALLY SEALED AND WHICH MAY BE READILY RECLOSED AND REOPENED ONCE THE VACUUM IS BROKEN WHICH COMPRISES, A CIRCULAR TOP PANEL PROJECTABLE WITHIN A MOUTH-DEFINING NECK PORTION OF A CONTAINER, AN ANNULAR GASKET-RECEIVING CHANNEL INCLINED OUTWARDLY AND UPWARDLY FROM THE OUTER MARGIN OF THE SAID TOP PANEL FOR RECEIVING SAID MOUTH-DEFINING NECK PORTION OF SUCH CONTAINER, MEANS FOR GRIPPING AN OUTER FINISH OF SAID NECK PORTION, AN ANNULAR SEALING GASKET POSITIONED WITHIN SAID ANNULAR GASKET-RECEIVING CHANNEL, VENT PENETRATING THE TOP PANEL OF SAID CLOSURE, A PARTIALLY REMOVABLE TAN PERMANENTLY SECURED TO THE UPPER SURFACE OF SAID CLOSURE ADJACENT THE PERIMETER THEREOF AND EXTENDING INWARDLY TO COVER SAID VENT AND PREVENT LOSS OF VACUUM UNTIL SUCH TIME AS SAID TAB IS PARTIALLY REMOVED, AND SAID TAB BEING PERMANENTLY FIXED AT ITS OUTER EXTREMITY ADJACENT THE PERIMETER AFFIXED INWARDLY THEREOF BY A LOW PEEL STRENGTH ADHESIVE.
Claim 2
Dependent Claim
156 words
AN IMPROVED CLOSURE FOR OPEN MOUTH CONTAINERS WHICH ARE VACUUM PACKED AND HERMETICALLY SEALED AND WHICH MAY BE READILY RECLOSED AND REOPENED ONCE THE VACUUM IS BROKEN WHICH COMPRISES, A CIRCULAR TOP PANEL PROJECTABLE WITHIN A MOUTH-DEFINING NECK PORTION OF A CONTAINER, AN ANNULAR GASKET-RECEIVING CHANNEL INCLINED OUTWARDLY AND UPWARDLY FROM THE OUTER MARGIN OF THE SAID TOP PANEL FOR RECEIVING SAID MOUTH-DEFINING NECK PORTION OF SUCH CONTAINER, MEANS FOR GRIPPING AN OUTER FINISH OF SAID NECK PORTION, AN ANNULAR SEALING GASKET POSITIONED WITHIN SAID ANNULAR GASKET-RECEIVING CHANNEL, VENT PENETRATING THE TOP PANEL OF SAID CLOSURE, A PARTIALLY REMOVABLE TAN PERMANENTLY SECURED TO THE UPPER SURFACE OF SAID CLOSURE ADJACENT THE PERIMETER THEREOF AND EXTENDING INWARDLY TO COVER SAID VENT AND PREVENT LOSS OF VACUUM UNTIL SUCH TIME AS SAID TAB IS PARTIALLY REMOVED, AND SAID TAB BEING PERMANENTLY FIXED AT ITS OUTER EXTREMITY ADJACENT THE PERIMETER AFFIXED INWARDLY THEREOF BY A LOW PEEL STRENGTH ADHESIVE.
Claim 3
Dependent Claim
43 words
AN IMPROVED CLOSURE AS DEFINED IN CLAIM 1 WHEREIN THE SAID MEANS FOR GRIPPING THE OUTE FINISH IS AN ANNULAR DOWNWARDLY-DEPENDING CURVILINEAR BEAM SECTION BOUNDING SAID GASKET-RECEIVING CHANNEL WHICH CONFORMS TO AND GRIPS SAID GASKET-RECEIVING CHANNEL WHICH CONFORMS TO AND GRIPS SAID FINISH.
References Cited (Backward Citations)
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US1019106A
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US2870935A
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US3203570A
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US3142401A
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US3217951A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-05 | 1971-09-04 | 1972-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-05 | 1975-09-04 | 1976-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-05 | 1979-09-04 | 1980-03-05 | $7700.00 | Window Closed / Lapsed |