Patent US3220259A successfully refreshed from Google Patents.
US3220259A
Expired / Lapsed
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Thaw indicator
Assignee: Individual
•
Filing: 1961-01-25
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Granted: 1965-11-30
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Expires: 1981-01-25
Abstract
No abstract record available.
Inventors
- 👤 Stuart E Beyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:14
CPC Classifications
G; G01; G01K; G01K3/00; G01K3/02; G01K3/04; G01N; G01N33/00; G01N33/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
A THAW AND QUALITY INDICATOR FOR FROZEN AND COLDSTORED FOODS AND PRODUCTS COMPRISING, AT LEST ONE PIECE OF ICE HAVING A SPECIFIC GEOMETRICAL CONFIGURAITON, A LIQUID-IMPERVIOUS ENCLOSURE COMPLETELY ENCLOSING SAID PIECE OF ICE AND HAVING AT LEAST A TRANSPARENT PORTION FOR VIEWING SAID PIECE OF ICE, SAID PIECE OF ICE FITTING IN SAID ENCLOSURE WITH A RELATIVELY SMALL CLEARANCE RELATIVE THE INNER SURFACES OF SAID ENCLOSURE IN A FROZEN CONDITION, SAID PIECE OF ICE BEING SUFFICIENTLY MOVABLE IN SAID ENCLOSURE IN THE ABSENCE OF MELTING AND REFREEZING THEREOF AS TO HAVE MOVEMENT RELATIVE TO SAID INNER SURFACES OF SAID ENCLOSURE DETECTABLE AT LEAST VISUALLY, SAID CLEARANCE BETWEEN SAID PIECE OF ICE AND SAID INNER SURFACES BEING DISPOSED AND DIMENSIONED TO ALLOW MOVEMENT BETWEEN THE ICE PIECE AND ENCLOSURE IN THE ABSENCE OF MELTING OF SAID ICE PIECE AND REFREEZING, AND SAID CLEARANCE BEING DIMENSIONED SUFFICIENTLY SMALL TO CAUSE SIAD PIECE OF ICE TO REMAIN FIXED RELATIVELY TO SAID INNER SURFACES IF AT LEAST A PORTION OF THE PIECE OF ICE MELTS AND THE MELTED PORTION REFROZEN.
Claim 2
Dependent Claim
176 words
A THAW AND QUALITY INDICATOR FOR FROZEN AND COLDSTORED FOODS AND PRODUCTS COMPRISING, AT LEST ONE PIECE OF ICE HAVING A SPECIFIC GEOMETRICAL CONFIGURAITON, A LIQUID-IMPERVIOUS ENCLOSURE COMPLETELY ENCLOSING SAID PIECE OF ICE AND HAVING AT LEAST A TRANSPARENT PORTION FOR VIEWING SAID PIECE OF ICE, SAID PIECE OF ICE FITTING IN SAID ENCLOSURE WITH A RELATIVELY SMALL CLEARANCE RELATIVE THE INNER SURFACES OF SAID ENCLOSURE IN A FROZEN CONDITION, SAID PIECE OF ICE BEING SUFFICIENTLY MOVABLE IN SAID ENCLOSURE IN THE ABSENCE OF MELTING AND REFREEZING THEREOF AS TO HAVE MOVEMENT RELATIVE TO SAID INNER SURFACES OF SAID ENCLOSURE DETECTABLE AT LEAST VISUALLY, SAID CLEARANCE BETWEEN SAID PIECE OF ICE AND SAID INNER SURFACES BEING DISPOSED AND DIMENSIONED TO ALLOW MOVEMENT BETWEEN THE ICE PIECE AND ENCLOSURE IN THE ABSENCE OF MELTING OF SAID ICE PIECE AND REFREEZING, AND SAID CLEARANCE BEING DIMENSIONED SUFFICIENTLY SMALL TO CAUSE SIAD PIECE OF ICE TO REMAIN FIXED RELATIVELY TO SAID INNER SURFACES IF AT LEAST A PORTION OF THE PIECE OF ICE MELTS AND THE MELTED PORTION REFROZEN.
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) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |