Patent US3221918A successfully refreshed from Google Patents.
US3221918A
Expired / Lapsed
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Snap-on can sealer
Assignee: Individual
•
Filing: 1963-12-30
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Granted: 1965-12-07
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Expires: 1983-12-30
Abstract
No abstract record available.
Inventors
- 👤 Louis G Callegari
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:47
CPC Classifications
B; B65; B65D; B65D51/00; B65D51/007
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A PLUG FOR SEALING AN OPENING IN THE TOP END WALL OF A CAN, SAID PLUG COMPRISING A RIGID PLASTIC PLATE-LIKE BODY, A RESILIENT PAD SECURED TO THE SURFACE OF THE BODY, AND A FASTENING DEVICE ANCHORED TO THE BODY AND HAVING PRONGS EXTENDING THROUGH THE PAD OUTWARDLY THEREOF, SAID PRONGS HAVING THE ENDS THEREOF BENT INWARDLY TOWARD EACH OTHER, THE BENDS IN THE PRONGS PROVIDING SHOULDERS FOR INTERLOCKING WITH THE EDGE WALLS OF THE OPENING IN THE TOP END WALL OF THE CAN TO HOLD THE PLUG IN OPERATIVE SEALING POSITION IN THE OPENING.
Claim 2
Dependent Claim
95 words
A PLUG FOR SEALING AN OPENING IN THE TOP END WALL OF A CAN, SAID PLUG COMPRISING A RIGID PLASTIC PLATE-LIKE BODY, A RESILIENT PAD SECURED TO THE SURFACE OF THE BODY, AND A FASTENING DEVICE ANCHORED TO THE BODY AND HAVING PRONGS EXTENDING THROUGH THE PAD OUTWARDLY THEREOF, SAID PRONGS HAVING THE ENDS THEREOF BENT INWARDLY TOWARD EACH OTHER, THE BENDS IN THE PRONGS PROVIDING SHOULDERS FOR INTERLOCKING WITH THE EDGE WALLS OF THE OPENING IN THE TOP END WALL OF THE CAN TO HOLD THE PLUG IN OPERATIVE SEALING POSITION IN THE OPENING.
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) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |