US3060130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of liquids of graded density
Assignee: Individual
•
Filing: 1960-07-19
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Granted: 1962-10-23
•
Expires: 1980-07-19
Abstract
No abstract record available.
Inventors
- 👤 Lawrence E Sacks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:47
CPC Classifications
C; C12; C12M; C12M99/00; Y; Y10; Y10T; Y10T436/00; Y10T436/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
THE METHOD WHICH COMPRISES PROVIDING A FIRST SOLUTION CONTAINING A GELLING AGENT, PROVIDING A SECOND SOLUTION CONTAINING A GELLING AGENT AND HAVING A DENSITY DIFFERENT FROM THE FIRST SOLUTION, SOLIDIFYING AND FORMING THE SOLUTIONS INTO A COMPOSITE STRUCTURE CONTAINING A BLOCK OF SOLIDIFIED FIRST SOLUTION AND AN ABUTTING BLOCK OF SOLIDIFIED SECOND SOLUTION, THE CROSS SECTION OF ONE OF SAID BLOCKS INCREASING AS IT IS VIEWED IN HORIZONTAL PLANES PROGRESSING FROM TOP TO BOTTOM OF THE STRUCTURE, THE CROSS-SECTION OF THE OTHER BLOCK DECREASING AS IT IS VIEWED IN HORIZONTAL PLANES PROGRESSING FROM TOP TO BOTTOM OF THE STRUCTURE, APPLYING HEAT MAINLY TO THE BOTTOM OF SAID STRUCTURE TO CAUSE PROGRESSIVE UPWARD MELTING THEREOF, AND REMOVING THE INCREMENTS OF LIQUID FORMED BY THE MELTING.
Claim 2
Independent Claim
124 words
THE METHOD WHICH COMPRISES PROVIDING A FIRST SOLUTION CONTAINING A GELLING AGENT, PROVIDING A SECOND SOLUTION CONTAINING A GELLING AGENT AND HAVING A DENSITY DIFFERENT FROM THE FIRST SOLUTION, SOLIDIFYING AND FORMING THE SOLUTIONS INTO A COMPOSITE STRUCTURE CONTAINING A BLOCK OF SOLIDIFIED FIRST SOLUTION AND AN ABUTTING BLOCK OF SOLIDIFIED SECOND SOLUTION, THE CROSS SECTION OF ONE OF SAID BLOCKS INCREASING AS IT IS VIEWED IN HORIZONTAL PLANES PROGRESSING FROM TOP TO BOTTOM OF THE STRUCTURE, THE CROSS-SECTION OF THE OTHER BLOCK DECREASING AS IT IS VIEWED IN HORIZONTAL PLANES PROGRESSING FROM TOP TO BOTTOM OF THE STRUCTURE, APPLYING HEAT MAINLY TO THE BOTTOM OF SAID STRUCTURE TO CAUSE PROGRESSIVE UPWARD MELTING THEREOF, AND REMOVING THE INCREMENTS OF LIQUID FORMED BY THE MELTING.
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) | 1965-10-22 | 1966-04-23 | 1966-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-22 | 1970-04-23 | 1970-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-22 | 1974-04-23 | 1974-10-23 | $7700.00 | Window Closed / Lapsed |