US3357592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure
Assignee: Denver Plastics Inc
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Filing: 1965-08-23
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Granted: 1967-12-12
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Expires: 1985-08-23
Abstract
No abstract record available.
Inventors
- 👤 Howard F Kusserow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:05
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/32; B65D41/46; B65D41/48; B65D55/00; B65D55/02; B65D55/06; B65D55/08; B65D55/0863
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A FLEXIBLE CLOSURE FOR AN OPENING COMPRISING A CIRCULAR PORTION, A PULL TAB FORMED INTEGRAL WITH SAID CIRCULAR PORTION EXTENDING GENERALLY RADIALLY THEREOF, PAIR OF INDENTED SHEAR LINES POSITIONED IN THE CIRCULAR PORTION AND FORMING A CONTINUATION OF THE TAB SIDES, SAID SHEAR LINES BEING ADAPTED TO BE EASILY TORN UPON APPLICATION OF A PULLING FORCE TO THE PULL TAB THEREBY RESULTING IN THE REMOVAL OF THE CLOSURE FORM AN OPENING, A DEPENDING FLANGE PORTION FORMED INTEGRAL FOR TORSIONAL FLEXURE SAID CIRCULAR PORTION AND ADAPTED FOR TORSIONAL FLEXURE WITH RESPECT THERETO, A DEPENDING RIB PORTION FORMED IN-
Claim 2
Dependent Claim
97 words
A FLEXIBLE CLOSURE FOR AN OPENING COMPRISING A CIRCULAR PORTION, A PULL TAB FORMED INTEGRAL WITH SAID CIRCULAR PORTION EXTENDING GENERALLY RADIALLY THEREOF, PAIR OF INDENTED SHEAR LINES POSITIONED IN THE CIRCULAR PORTION AND FORMING A CONTINUATION OF THE TAB SIDES, SAID SHEAR LINES BEING ADAPTED TO BE EASILY TORN UPON APPLICATION OF A PULLING FORCE TO THE PULL TAB THEREBY RESULTING IN THE REMOVAL OF THE CLOSURE FORM AN OPENING, A DEPENDING FLANGE PORTION FORMED INTEGRAL FOR TORSIONAL FLEXURE SAID CIRCULAR PORTION AND ADAPTED FOR TORSIONAL FLEXURE WITH RESPECT THERETO, A DEPENDING RIB PORTION FORMED IN-
References Cited (Backward Citations)
US2829794A
Cited
US3142404A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-11 | 1971-06-12 | 1971-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-11 | 1975-06-12 | 1975-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-11 | 1979-06-12 | 1979-12-12 | $7700.00 | Window Closed / Lapsed |