US2847340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of attaching a tearing strip key to a can wall
Assignee: Primerica Inc
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Filing: 1954-11-30
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Granted: 1958-08-12
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Expires: 1974-11-30
Abstract
No abstract record available.
Inventors
- 👤 Richard L Joosten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:36
CPC Classifications
B; B65; B65D; B65D17/00; B65D17/52; B65D17/523
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
THE METHOD OF ATTACHING A METAL OPENER TO A METAL CAN END, SAID OPENER HAVING A SHANK PORTION INTERMEDIATE ITS ENDS AND AN OPENING IN ONE END, COMPRISING HEATING A HOT MELT ADHESIVE TO A TEMPERATURE ABOVE ITS SOFTENING POINT OT RENDER IT TACKY, APPLYING SAID ADHESIVE WHILE TACKY TO A LIMITED AREA OF SAID CAN END, PRESSING SAID SHANK PORTION OF SAID OPENER INTO SAID ADHESIVE WHILE SAID ADHESIVE IS IN A TACKY STATE TO SECURE SAID OPENER AGAINST DISPLACEMENT RELATIVE TO SAID CAN END, DEPOSITING A SECOND ADHESIVE DISSOLVED IN A VOLATILE SOLVENT TO THE ASSEMBLED OPENER AND CAN END IN SAID OPENING IN THE END OF SAID OPENER, AND EATING SAID ASSEMBLED OPENED AND CAN END TO A TEMPERATURE BELOW THE SOFTENING POINT OF SAID HOT MELT ADHESIVE TO EVAPORATE SAID VOLATILE SOLVENT TO SET SAID SECOND ADHESIVE WHILE SAID OPENER IS HELD AGAINST DISPLACEMENT BY SAID HOT MELT ADHESIVE.
Claim 2
Independent Claim
153 words
THE METHOD OF ATTACHING A METAL OPENER TO A METAL CAN END, SAID OPENER HAVING A SHANK PORTION INTERMEDIATE ITS ENDS AND AN OPENING IN ONE END, COMPRISING HEATING A HOT MELT ADHESIVE TO A TEMPERATURE ABOVE ITS SOFTENING POINT OT RENDER IT TACKY, APPLYING SAID ADHESIVE WHILE TACKY TO A LIMITED AREA OF SAID CAN END, PRESSING SAID SHANK PORTION OF SAID OPENER INTO SAID ADHESIVE WHILE SAID ADHESIVE IS IN A TACKY STATE TO SECURE SAID OPENER AGAINST DISPLACEMENT RELATIVE TO SAID CAN END, DEPOSITING A SECOND ADHESIVE DISSOLVED IN A VOLATILE SOLVENT TO THE ASSEMBLED OPENER AND CAN END IN SAID OPENING IN THE END OF SAID OPENER, AND EATING SAID ASSEMBLED OPENED AND CAN END TO A TEMPERATURE BELOW THE SOFTENING POINT OF SAID HOT MELT ADHESIVE TO EVAPORATE SAID VOLATILE SOLVENT TO SET SAID SECOND ADHESIVE WHILE SAID OPENER IS HELD AGAINST DISPLACEMENT BY SAID HOT MELT ADHESIVE.
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) | 1961-08-11 | 1962-02-10 | 1962-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-11 | 1966-02-10 | 1966-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-11 | 1970-02-10 | 1970-08-12 | $7700.00 | Window Closed / Lapsed |