Patent US3087390A successfully refreshed from Google Patents.
US3087390A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for cooling and curling edges of polyethylene coated paper cups
Assignee: Continental Can Co Inc
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Filing: 1961-06-29
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Granted: 1963-04-30
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Expires: 1981-06-29
Abstract
No abstract record available.
Inventors
- 👤 Ruza Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:25
CPC Classifications
B; B29; B29C; B29C57/00; B29C57/12; Y; Y10; Y10S; Y10S264/00; Y10S264/42; Y10S425/00; Y10S425/055
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A CURLING HEAD FOR CURLING AN END OF A CUP BODY TO FORM A BEAD THEREON, COMPRISING A CURLING DIE, AND MEANS CONNECTED TO SAID CURLING DIE FOR COOLING SAID CURLING DIE BELOW THE FREEZING TEMPERATURE OF WATER WHEREBY MOISTURE IN THE ATMOSPHERE WILL COLLECT AND FREEZE ON SAID CURLING DIE TO PROVIDE AN ICED SURFACE THEREON TO FACILITATE THE SLIPPING OF THE CUP RELATIVE TO SAID CURLING DIE.
Claim 2
Dependent Claim
69 words
A CURLING HEAD FOR CURLING AN END OF A CUP BODY TO FORM A BEAD THEREON, COMPRISING A CURLING DIE, AND MEANS CONNECTED TO SAID CURLING DIE FOR COOLING SAID CURLING DIE BELOW THE FREEZING TEMPERATURE OF WATER WHEREBY MOISTURE IN THE ATMOSPHERE WILL COLLECT AND FREEZE ON SAID CURLING DIE TO PROVIDE AN ICED SURFACE THEREON TO FACILITATE THE SLIPPING OF THE CUP RELATIVE TO SAID CURLING DIE.
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) | 1966-04-29 | 1966-10-29 | 1967-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-29 | 1970-10-29 | 1971-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-29 | 1974-10-29 | 1975-04-30 | $7700.00 | Window Closed / Lapsed |