Patent US4503125A successfully refreshed from Google Patents.
US3091091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling package for beverages and food
Assignee: Individual
•
Filing: 1961-04-17
•
Granted: 1963-05-28
•
Expires: 1981-04-17
Abstract
No abstract record available.
Inventors
- 👤 Ferrante Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:28
CPC Classifications
F; F25; F25D; F25D5/00; F25D5/02; F25D2331/00; F25D2331/80; F25D2331/809
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A REFRIGERATION OR HEATING PACKAGE, COMPRISING AN OUTER CLOSED FLEXIBLE ENVELOPE, A CLOSED INNER FLEXIBLE ENVELOPE WITHIN THE OUTER ENVELOPE, SAID INNER ENVELOPE BEING FILLED WITH A LIQUID, SAID OUTER ENVELOPE BEING FILLED WITH A GRANULAR SUBSTANCE CAPABLE OF REACTING WITH THE LIQUID TO CHANGE THE TEMPERATURE THEREOF, SAID INNER ENVELOPE HAVING WALLS JOINED IN A SEAM, A PAIR OF BUTTONS SECURED TO SAID WALLS AT SAID SEAM, SAID WALLS HAVING THINNED AND WEAKENED PORTIONS AT THE BUTTONS, WHEREBY THE SAID PORTIONS ARE TORN OPEN WHEN THE BUTTONS ARE GRASPED THROUGH SIDES OF THE OUTER ENVELOPE AND ARE PULLED APART IN OPPOSITE DIRECTIONS TO RELEASE SAID LIQUID FROM THE INNER ENVELOPE.
Claim 2
Dependent Claim
111 words
A REFRIGERATION OR HEATING PACKAGE, COMPRISING AN OUTER CLOSED FLEXIBLE ENVELOPE, A CLOSED INNER FLEXIBLE ENVELOPE WITHIN THE OUTER ENVELOPE, SAID INNER ENVELOPE BEING FILLED WITH A LIQUID, SAID OUTER ENVELOPE BEING FILLED WITH A GRANULAR SUBSTANCE CAPABLE OF REACTING WITH THE LIQUID TO CHANGE THE TEMPERATURE THEREOF, SAID INNER ENVELOPE HAVING WALLS JOINED IN A SEAM, A PAIR OF BUTTONS SECURED TO SAID WALLS AT SAID SEAM, SAID WALLS HAVING THINNED AND WEAKENED PORTIONS AT THE BUTTONS, WHEREBY THE SAID PORTIONS ARE TORN OPEN WHEN THE BUTTONS ARE GRASPED THROUGH SIDES OF THE OUTER ENVELOPE AND ARE PULLED APART IN OPPOSITE DIRECTIONS TO RELEASE SAID LIQUID FROM THE INNER ENVELOPE.
References Cited (Backward Citations)
US1721311A
Cited
US2759337A
Cited
US2615447A
Cited
US2771724A
Cited
US2882691A
Cited
US2916197A
Cited
US2968932A
Cited
US2925719A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-27 | 1966-11-26 | 1967-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-27 | 1970-11-26 | 1971-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-27 | 1974-11-26 | 1975-05-28 | $7700.00 | Window Closed / Lapsed |