Patent US2653920A successfully refreshed from Google Patents.
US2653920A
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US
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Molded articles comprising a furfuryl alcohol resin and a mixture of fillers of different mesh sizes
Assignee: Arthur D Little Inc
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Filing: 1949-08-02
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Granted: 1953-09-29
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Expires: 1969-08-02
Abstract
No abstract record available.
Inventors
- 👤 Charles G Harford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:51
CPC Classifications
C; C04; C04B; C04B26/00; C04B26/02; C04B26/10; C04B26/105; C08; C08K; C08K3/00; C08K3/01; C08K3/013
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A DENSE, CHEMICALLY RESISTANT STRUCTURE CONSISTING SUBSTANTIALLY ENTIRELY OF A MINERAL FILLER, A CURED RESIN AND A CATALYST, SAID MINERAL FILLER BEING COMPOSED OF A CHEMICALLY RESISTANT MINERAL AGGREGATE PASSING THROUGH A 16 MESH SCREEN AND BEING RETAINED ON A 100 MESH SCREEN AND FROM 25 TO 80% BY WEIGHT OF SAID AGGREGATE OF CHEMICALLY RESISTANT MINERAL FLOUR AT LEAST 95% OF WHICH PASSES THROUGH A 200 MESH SCREEN, SAID RESIN BEING A FURFURYL ALCOHOL RESIN AND BEING PRESENT IN AN AMOUNT OF 6 TO 12% BASED ON THE TOTAL WEIGHT OF THE COMPOSITION.
Claim 2
Dependent Claim
94 words
A DENSE, CHEMICALLY RESISTANT STRUCTURE CONSISTING SUBSTANTIALLY ENTIRELY OF A MINERAL FILLER, A CURED RESIN AND A CATALYST, SAID MINERAL FILLER BEING COMPOSED OF A CHEMICALLY RESISTANT MINERAL AGGREGATE PASSING THROUGH A 16 MESH SCREEN AND BEING RETAINED ON A 100 MESH SCREEN AND FROM 25 TO 80% BY WEIGHT OF SAID AGGREGATE OF CHEMICALLY RESISTANT MINERAL FLOUR AT LEAST 95% OF WHICH PASSES THROUGH A 200 MESH SCREEN, SAID RESIN BEING A FURFURYL ALCOHOL RESIN AND BEING PRESENT IN AN AMOUNT OF 6 TO 12% BASED ON THE TOTAL WEIGHT OF THE COMPOSITION.
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) | 1956-09-28 | 1957-03-30 | 1957-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-28 | 1961-03-30 | 1961-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-28 | 1965-03-30 | 1965-09-29 | $7700.00 | Window Closed / Lapsed |