Patent US3249248A successfully refreshed from Google Patents.
US3249248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Craze-resistant plastic closures
Assignee: Avantor Performance Materials LLC
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Filing: 1964-12-21
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Granted: 1966-05-03
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Expires: 1984-12-21
Abstract
No abstract record available.
Inventors
- 👤 Joseph L Metzendorf
- 👤 Eli M Pearce
- 👤 John M Jordan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:29
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/02; B65D41/04; B65D41/0492
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A CRAZE-RESISTANT CLOSURE FOR A CONTAINER COMPRISING: (A) A HOLLOW CAP INSERT HAVING A TOP AND SIDES OF A POLYMERIC MATERIAL RESISTANT TO ATTACK BY ORGANIC LIQUIDS, SAID INSERT HAVING MEANS FOR ENGAGING ABOUT THE MOUTH OF A CONTAINER; (B) A HOLLOW CAP OF A HARD THERMOPLASTIC POLYMER HAVING A LUSTROUS SURFACE; (C) THE INSERT FITTED WITHIN SAID HOLLOW CAP WITH THE SIDES OF SAID INSERT IN CLOSE FITTING RELATIONSHIP WITH THE CORRESPONDING SURFACES OF SAID CAP WHEREIN THE OUTER DIAMETER OF SAID INSERT IS NOT MORE THAN 0.8% GREATER THAN THE UNSTRESSED INNER DIAMETER OF SAID CAP; (D) THE OUTER CONFIGURATION OF SAID INSERT IN ASSEMBLED RELATIONSHIP KEYED TO THE ADJACENT CONFIGURATION OF THE CAP TO PREVENT ROTATION; AND (E) AN ADHESIVE SECURING THE LOWER MATING EDGES OF SAID CAP AND INSERT AND OBSTRUCTING THE PENETRATION OF LIQUIDS THEREBETWEEN.
Claim 2
Dependent Claim
140 words
A CRAZE-RESISTANT CLOSURE FOR A CONTAINER COMPRISING: (A) A HOLLOW CAP INSERT HAVING A TOP AND SIDES OF A POLYMERIC MATERIAL RESISTANT TO ATTACK BY ORGANIC LIQUIDS, SAID INSERT HAVING MEANS FOR ENGAGING ABOUT THE MOUTH OF A CONTAINER; (B) A HOLLOW CAP OF A HARD THERMOPLASTIC POLYMER HAVING A LUSTROUS SURFACE; (C) THE INSERT FITTED WITHIN SAID HOLLOW CAP WITH THE SIDES OF SAID INSERT IN CLOSE FITTING RELATIONSHIP WITH THE CORRESPONDING SURFACES OF SAID CAP WHEREIN THE OUTER DIAMETER OF SAID INSERT IS NOT MORE THAN 0.8% GREATER THAN THE UNSTRESSED INNER DIAMETER OF SAID CAP; (D) THE OUTER CONFIGURATION OF SAID INSERT IN ASSEMBLED RELATIONSHIP KEYED TO THE ADJACENT CONFIGURATION OF THE CAP TO PREVENT ROTATION; AND (E) AN ADHESIVE SECURING THE LOWER MATING EDGES OF SAID CAP AND INSERT AND OBSTRUCTING THE PENETRATION OF LIQUIDS THEREBETWEEN.
References Cited (Backward Citations)
US2074830A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |