Patent US3850864A successfully refreshed from Google Patents.
US3850864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compound to make products,per se and to cast other materials
Assignee: Individual
•
Filing: 1972-12-06
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Granted: 1974-11-26
•
Expires: 1992-12-06
Abstract
Abstract 1. A COMPOSITION OF MATERIAL FORMING A COMPOUND USED TO FORM SPACES TO RECEIVE CASTING MATERIALS, AND USED TO MAKE PRODUCTS PER SE, COMPRISING: (A) AN ALIGNATE FORM A GROUP CONSISTING OF AN ALKALI METAL AND AMMONIUM ALIGNATES; (B) PHENOLIC RESIN MICROSPHERS OF AN AVERAGE DIAMETER OF ABOUT 0.0017 INCH; AND (C) WATER WHEREIN THE PRACTICAL RANGE OF PROPORTIONS BY WEIGHT IN PREPARING 500 GRAMS IS FROM ABOUT 2:1:7 TO 1:5:14 PARTS RESPECTIVELY OF SAID ALIGNATE, PHENOLIC RESIN MICROSPHERS, AND WATER.
Inventors
- 👤 D Emerson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:41
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/32; A; A61; A61K; A61K6/00; A61K6/90; C08L; C08L5/00; C08L5/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A COMPOSITION OF MATERIAL FORMING A COMPOUND USED TO FORM SPACES TO RECEIVE CASTING MATERIALS, AND USED TO MAKE PRODUCTS PER SE, COMPRISING: (A) AN ALIGNATE FORM A GROUP CONSISTING OF AN ALKALI METAL AND AMMONIUM ALIGNATES; (B) PHENOLIC RESIN MICROSPHERS OF AN AVERAGE DIAMETER OF ABOUT 0.0017 INCH; AND (C) WATER WHEREIN THE PRACTICAL RANGE OF PROPORTIONS BY WEIGHT IN PREPARING 500 GRAMS IS FROM ABOUT 2:1:7 TO 1:5:14 PARTS RESPECTIVELY OF SAID ALIGNATE, PHENOLIC RESIN MICROSPHERS, AND WATER.
Claim 2
Dependent Claim
80 words
A COMPOSITION OF MATERIAL FORMING A COMPOUND USED TO FORM SPACES TO RECEIVE CASTING MATERIALS, AND USED TO MAKE PRODUCTS PER SE, COMPRISING: (A) AN ALIGNATE FORM A GROUP CONSISTING OF AN ALKALI METAL AND AMMONIUM ALIGNATES; (B) PHENOLIC RESIN MICROSPHERS OF AN AVERAGE DIAMETER OF ABOUT 0.0017 INCH; AND (C) WATER WHEREIN THE PRACTICAL RANGE OF PROPORTIONS BY WEIGHT IN PREPARING 500 GRAMS IS FROM ABOUT 2:1:7 TO 1:5:14 PARTS RESPECTIVELY OF SAID ALIGNATE, PHENOLIC RESIN MICROSPHERS, AND WATER.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-25 | 1978-05-27 | 1978-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-25 | 1982-05-27 | 1982-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-25 | 1986-05-27 | 1986-11-26 | $7700.00 | Window Closed / Lapsed |