Patent US3307746A successfully refreshed from Google Patents.
US3307746A
Expired / Lapsed
US
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Frangible opening device for containers
Assignee: Illinois Tool Works Inc
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Filing: 1965-06-28
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Granted: 1967-03-07
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Expires: 1985-06-28
Abstract
No abstract record available.
Inventors
- 👤 Edwards Bryant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:28
CPC Classifications
B; B65; B65D; B65D17/00; B65D17/28; B65D17/401; B65D17/32; Y; Y10; Y10S; Y10S229/00; Y10S229/927
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2614734A
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US2898018A
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US2893611A
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US3076584A
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US3042271A
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US3003668A
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US3204827A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |