Patent US2863305A successfully refreshed from Google Patents.
US2863305A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerant article and composition
Assignee: Individual
•
Filing: 1953-08-10
•
Granted: 1958-12-09
•
Expires: 1973-08-10
Abstract
No abstract record available.
Inventors
- 👤 John C Shepherd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:27
CPC Classifications
C; C09; C09K; C09K5/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
AN ARTICLE OF MANUFACTURE FROM WHICH A PACKAGED REFRIGERANT CAN BE PREPARED BY SIMPLY ADDING WATER AND SHAKING, COMPRISING A PREGELATINIZED STARCH MIXED WITH BORAX AND A WATER-HATING AGENT; AND AN OVERSIZED FLEXIBLE OPEN-END TRANSPARENT BAG MADE FROM WATERPROOF MATERIAL AND ABLE TO HOLD BETWEEN 3 AND 20 TIMES AS MUCH WATER BY WEIGHT AS THE STARCH THEREIN AND MARKED WITH A FIRST INDICATING LINE TO INDICATE THE CORRECT PROPORTION OF WATER TO BE ADDED AND HAVING A FLEXIBLE PORTION BEYOND SAID MARKING LINE, WITH A SECOND LINE INDICATING A FOLD LINE ABLE TO PROVIDE THE VOID SPACE NECESSARY FOR MIXING, WHEREBY THE CONTAINER CAN BE FOLDED OVER AT THE SECOND LINE AND CLOSED TIGHTLY ENOUGH TO PREVENT LEAKAGE THEREFROM, WHILE SHAKING THE PACKAGE WITH THE ADDITION OF WATER, AND CAN LATER BE FOLDED OVER TO THE FIRST LINE FOR PERMANENT HOLDING OF THE GEL.
Claim 2
Dependent Claim
145 words
AN ARTICLE OF MANUFACTURE FROM WHICH A PACKAGED REFRIGERANT CAN BE PREPARED BY SIMPLY ADDING WATER AND SHAKING, COMPRISING A PREGELATINIZED STARCH MIXED WITH BORAX AND A WATER-HATING AGENT; AND AN OVERSIZED FLEXIBLE OPEN-END TRANSPARENT BAG MADE FROM WATERPROOF MATERIAL AND ABLE TO HOLD BETWEEN 3 AND 20 TIMES AS MUCH WATER BY WEIGHT AS THE STARCH THEREIN AND MARKED WITH A FIRST INDICATING LINE TO INDICATE THE CORRECT PROPORTION OF WATER TO BE ADDED AND HAVING A FLEXIBLE PORTION BEYOND SAID MARKING LINE, WITH A SECOND LINE INDICATING A FOLD LINE ABLE TO PROVIDE THE VOID SPACE NECESSARY FOR MIXING, WHEREBY THE CONTAINER CAN BE FOLDED OVER AT THE SECOND LINE AND CLOSED TIGHTLY ENOUGH TO PREVENT LEAKAGE THEREFROM, WHILE SHAKING THE PACKAGE WITH THE ADDITION OF WATER, AND CAN LATER BE FOLDED OVER TO THE FIRST LINE FOR PERMANENT HOLDING OF THE GEL.
References Cited (Backward Citations)
CA440385A
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US1742472A
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US1752371A
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US1550650A
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US1782526A
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US1904222A
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US1973613A
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US2276220A
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US2442658A
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US2613206A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-08 | 1962-06-09 | 1962-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-08 | 1966-06-09 | 1966-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-08 | 1970-06-09 | 1970-12-09 | $7700.00 | Window Closed / Lapsed |