Patent US2687967A successfully refreshed from Google Patents.
US2687967A
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Inorganic thermosetting molding composition
Assignee: GARFIELD Manufacturing Co
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Filing: 1954-03-12
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Granted: 1954-08-31
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Expires: 1974-03-12
Abstract
No abstract record available.
Inventors
- 👤 Elmer J Yedlick
- 👤 Eileen R Ford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:08
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/02; H01B3/10; C; C04; C04B; C04B28/00; C04B28/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A THERMOSETTING COMPOSITION ADAPTED TO BE MOLDED UNDER HEAT AND PRESSURE CONSISTING ESSENTIALLY OF A MIXTURE OF APPROXIMATELY 2 PARTS OF FINELY GROUND CALCIUM SILICATE AND AN AXID MATERIAL SELECTED FROM THE GROUP CONSISTING OF PHOSPHORIC ACID AND AN ACID ALUMINUM PHOSPHATE SALT, SAID ACID MATERIAL BEING PRESENT IN AN AMOUNT SUFFICIENT TO GIVE THE MIXTURE A PHOSPHOROUS PENTOXIDE CONTENT APPROXIMATELY EQUAL TO THAT OF A MIXTURE OF 2 PARTS BY WEIGHT OF CALCIUM SILICATE AND BETWEEN APPROXIMATELY ONE-QUARTER TO ONE AND ONE-HALF PARTS BY WEIGHT OF 75% ORTHOPHOSPHORIC ACID AND SAID MIXTURE BEING AT A TEMPERATURE LOW ENOUGH SUBSTANTIALLY TO PREVENT REACTION BETWEEN THE INGREDIENTS.
Claim 2
Dependent Claim
106 words
A THERMOSETTING COMPOSITION ADAPTED TO BE MOLDED UNDER HEAT AND PRESSURE CONSISTING ESSENTIALLY OF A MIXTURE OF APPROXIMATELY 2 PARTS OF FINELY GROUND CALCIUM SILICATE AND AN AXID MATERIAL SELECTED FROM THE GROUP CONSISTING OF PHOSPHORIC ACID AND AN ACID ALUMINUM PHOSPHATE SALT, SAID ACID MATERIAL BEING PRESENT IN AN AMOUNT SUFFICIENT TO GIVE THE MIXTURE A PHOSPHOROUS PENTOXIDE CONTENT APPROXIMATELY EQUAL TO THAT OF A MIXTURE OF 2 PARTS BY WEIGHT OF CALCIUM SILICATE AND BETWEEN APPROXIMATELY ONE-QUARTER TO ONE AND ONE-HALF PARTS BY WEIGHT OF 75% ORTHOPHOSPHORIC ACID AND SAID MIXTURE BEING AT A TEMPERATURE LOW ENOUGH SUBSTANTIALLY TO PREVENT REACTION BETWEEN THE INGREDIENTS.
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) | 1957-08-30 | 1958-03-01 | 1958-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-30 | 1962-03-01 | 1962-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-30 | 1966-03-01 | 1966-08-31 | $7700.00 | Window Closed / Lapsed |