US3345798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for making and applying closures
Assignee: WR Grace and Co
•
Filing: 1962-03-26
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Granted: 1967-10-10
•
Expires: 1982-03-26
Abstract
No abstract record available.
Inventors
- 👤 Martin M Sternau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:55
CPC Classifications
B; B65; B65B; B65B7/00; B65B7/16; B65B7/28; B65B7/2842; B65B7/2885
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
90 words
THE METHOD OF MAKING A CLOSURE TO BE USED FOR CAPPING THE SEALING A FLEXIBLE METAL CONTAINER COMPRISING THE STEPS OF FORCING A MOLDABLE MATERIAL INTO A FEMALE DIE BY A MALE DIE, SIMULTANEOUSLY FORMING A PERIPHERAL CREASE IN THE CLOSURE FLANGE ABOUT MIDWAY OF ITS HEIGHT BY PRESSING A RESILIENT RING ON SAID MALE MEMBER INTO A GROOVE IN SAID FEMALE MEMBER, ALSO SIMULTANEOUSLY FORMING A BEADED EDGE ON THE RIM OF SAID CLOSURE, AND SUBSEQUENTLY SNAPPING THE BEADED EDGE OF THE CLOSURE OVER THE MOUTH OF A CONTAINER.
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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) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |