US3420927A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and instrumentalities for applying plastic closures to container bodies
Assignee: Primerica Inc
•
Filing: 1964-05-14
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Granted: 1969-01-07
•
Expires: 1984-05-14
Abstract
No abstract record available.
Inventors
- 👤 Andrew Lucien Corrinet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:18
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/56; B29C65/567; B29C65/568; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/13; B29C66/131; B29C66/50; B29C66/51; B29C66/54; B29C66/542; B29C66/545; B29C66/80; B29C66/81; B29C66/814; B29C66/8141; B29C66/81427; B29C66/81429; B29C66/81431; B29C66/83; B29C66/834; B29C66/8341; B29C66/83411; B67; B67B; B67B3/00; B67B3/02; B67B3/026; B29C66/12; B29C66/124; B29C66/1244; B29C66/12441; B29C66/81411; B29C66/81421; B29C66/81423
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A METHOD OF CONFORMING A PLASTIC END CLOSURE FLANGE TO THE SHAPE OF A CONTAINER BODY, COMPRISING THE STEPS OF PROVIDING A PLASTIC END CLOSURE HAVING AN OUTWARDLY FLARING FLANGE, PLACING SAID PLASTIC END CLOSURE OVER AN END PORTION OF SAID CONTAINER BODY, PRESSING SAID FLANGE INWARDLY INTO TIGHT ENGAGEMENT WITH THE OUTER SURFACE OF SAID BODY, AND COLD ROLLING THE OUTER SURFACE OF SAID FLANGE WITH A ROLLER HAVING A SERRATED FACE TO REFORM THE OUTER SURFACE OF SAID PRESSED-IN FLANGE BY PLASTIC DEFORMATION TO PERMANENTLY SET AND RESTRAIN SAID FLANGE AGAINST RETRACTION FROM ITS TIGHT ENGAGEMENT WITH SAID BODY.
Claim 2
Independent Claim
101 words
A METHOD OF CONFORMING A PLASTIC END CLOSURE FLANGE TO THE SHAPE OF A CONTAINER BODY, COMPRISING THE STEPS OF PROVIDING A PLASTIC END CLOSURE HAVING AN OUTWARDLY FLARING FLANGE, PLACING SAID PLASTIC END CLOSURE OVER AN END PORTION OF SAID CONTAINER BODY, PRESSING SAID FLANGE INWARDLY INTO TIGHT ENGAGEMENT WITH THE OUTER SURFACE OF SAID BODY, AND COLD ROLLING THE OUTER SURFACE OF SAID FLANGE WITH A ROLLER HAVING A SERRATED FACE TO REFORM THE OUTER SURFACE OF SAID PRESSED-IN FLANGE BY PLASTIC DEFORMATION TO PERMANENTLY SET AND RESTRAIN SAID FLANGE AGAINST RETRACTION FROM ITS TIGHT ENGAGEMENT WITH SAID BODY.
References Cited (Backward Citations)
US2859575A
Cited
US2840854A
Cited
US3122274A
Cited
FR1175108A
Cited
US3065678A
Cited
US3163973A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |