US2584334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diphenyl and phenyl orthosilicates
Assignee: John B. Pierce Laboratory
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Filing: 1950-06-10
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Granted: 1952-02-05
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Expires: 1970-06-10
Abstract
No abstract record available.
Inventors
- 👤 Fano Ettore Da
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:20
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/04; C07F7/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A COMPOSITION HAVING A HIGH BOILING POINT, LOW MELTING POINT AND EXCEPTIONAL HEAT STABILITY OVER LONG PERIODS OF TIME, CONSISTING ESSENTIALLY OF A MIXTURE OF PHENYL OF ORTHOSILICATE, DIPHENYL ORTHOSILICATE AND MIXED PHENYL DIPHENYL ORTHOSILICATES SELECTED IN SUCH PROPORTIONS WITHIN THE RANGE OF 0.4 TO 3.6 DIPHENYL RADICALS AND 3.6 TO 0.4 PHENYL RADICALS FOR EACH SILICATE RADICAL THAT THE MIXTURE HAS A VISCOSITY ADAPTING IT FOR USE AS A HEAT TRANSFER MEDIUM.
Claim 2
Dependent Claim
73 words
A COMPOSITION HAVING A HIGH BOILING POINT, LOW MELTING POINT AND EXCEPTIONAL HEAT STABILITY OVER LONG PERIODS OF TIME, CONSISTING ESSENTIALLY OF A MIXTURE OF PHENYL OF ORTHOSILICATE, DIPHENYL ORTHOSILICATE AND MIXED PHENYL DIPHENYL ORTHOSILICATES SELECTED IN SUCH PROPORTIONS WITHIN THE RANGE OF 0.4 TO 3.6 DIPHENYL RADICALS AND 3.6 TO 0.4 PHENYL RADICALS FOR EACH SILICATE RADICAL THAT THE MIXTURE HAS A VISCOSITY ADAPTING IT FOR USE AS A HEAT TRANSFER MEDIUM.
References Cited (Backward Citations)
US2335012A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-04 | 1955-08-06 | 1956-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-04 | 1959-08-06 | 1960-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-04 | 1963-08-06 | 1964-02-05 | $7700.00 | Window Closed / Lapsed |