US3301426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure cap
Assignee: American Flange and Manufacturing Co Inc
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Filing: 1964-06-05
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Granted: 1967-01-31
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Expires: 1984-06-05
Abstract
No abstract record available.
Inventors
- 👤 Leonard S Kavalus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:02
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/32; B65D41/40; B65D41/42; B65D2401/00; B65D2401/15; B65D2401/35
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
A LIGHTWEIGHT METAL CLOSURE CAP ADAPTED TO BE SECURED OVER A LIP BORDERING THE OPENING OF A CONTAINER NECK, SAID CAP COMPRISING A DISC-LIKE TOP PORTION, A LATERALLY DEPENDING SKIRT THEREAROUND HAVING A SMOOTH CYLINDRICAL SURFACE TERMINATING IN A SUBSTANTIALLY CIRCULAR LOWERMOST FREE EDGE, A PAIR OF WEAKENED TEARING LINES EXTENDING ACROSS SAID CAP SKIRT AND INTO SAID TOP PORTION, SAID LINES DEFINING A TEAR STRIP THEREBETWEEN FORMING AN INTEGRAL PART OF SAID CAP SKIRT AND TOP PORTION, SAID TEAR STRIP EXTENDING DOWNWARDLY AWAY FROM SAID FREE EDGE IN A SHORT EXTENSION OF SAID SKIRT AND THEN EXTENDING RADIALLY OUTWARDLY AWAY FROM SAID SKIRT IN A GRIPPING PORTION TO FACILITATE TEARING, A RADIALLY ELONGATED SLOT FORMED IN SAID TEAR STRIP, SAID SLOT DISPOSED WITHIN SAID SHORT EXTENSION OF SAID TEAR STRIP WHEREBY SEVERE DISTORTION OF SAID WEAKENED LINES IS PROTECTED AGAINST THROUGH DEFORMATION OF SAID SLOT WHICH DEFORMATION REDUCES THE RESISTANCE OFFERED BY SAID SHORT SKIRT EXTENSION OF SAID TEAR STRIP TO CIRCUMFERENTIAL MOVEMENT OF METAL IN SAID SKIRT DURING INITIAL FORMING AND SUBSEQUENT APPLYING OF SAID CAP.
Claim 2
Dependent Claim
178 words
A LIGHTWEIGHT METAL CLOSURE CAP ADAPTED TO BE SECURED OVER A LIP BORDERING THE OPENING OF A CONTAINER NECK, SAID CAP COMPRISING A DISC-LIKE TOP PORTION, A LATERALLY DEPENDING SKIRT THEREAROUND HAVING A SMOOTH CYLINDRICAL SURFACE TERMINATING IN A SUBSTANTIALLY CIRCULAR LOWERMOST FREE EDGE, A PAIR OF WEAKENED TEARING LINES EXTENDING ACROSS SAID CAP SKIRT AND INTO SAID TOP PORTION, SAID LINES DEFINING A TEAR STRIP THEREBETWEEN FORMING AN INTEGRAL PART OF SAID CAP SKIRT AND TOP PORTION, SAID TEAR STRIP EXTENDING DOWNWARDLY AWAY FROM SAID FREE EDGE IN A SHORT EXTENSION OF SAID SKIRT AND THEN EXTENDING RADIALLY OUTWARDLY AWAY FROM SAID SKIRT IN A GRIPPING PORTION TO FACILITATE TEARING, A RADIALLY ELONGATED SLOT FORMED IN SAID TEAR STRIP, SAID SLOT DISPOSED WITHIN SAID SHORT EXTENSION OF SAID TEAR STRIP WHEREBY SEVERE DISTORTION OF SAID WEAKENED LINES IS PROTECTED AGAINST THROUGH DEFORMATION OF SAID SLOT WHICH DEFORMATION REDUCES THE RESISTANCE OFFERED BY SAID SHORT SKIRT EXTENSION OF SAID TEAR STRIP TO CIRCUMFERENTIAL MOVEMENT OF METAL IN SAID SKIRT DURING INITIAL FORMING AND SUBSEQUENT APPLYING OF SAID CAP.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |