Patent JPS577936A successfully refreshed from Google Patents.
Patent US2760938A successfully refreshed from Google Patents.
US2760938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of vapor mixtures
Assignee: NL Industries Inc
•
Filing: 1951-09-04
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Granted: 1956-08-28
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Expires: 1971-09-04
Abstract
No abstract record available.
Inventors
- 👤 Augustine N Dempster
- 👤 Roy J Mundy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:23
CPC Classifications
C; C01; C01G; C01G23/00; C01G23/02; C01G23/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
METHOD FOR FORMING A PREDETERMINED PROPORTIONED INTIMATE MIXTURE IN TITANIUM TETRACHLORIDE AND SILICON TETRACHLORIDE IN GASEOUS FORM WHICH COMPRISES THE STEPS OFADMIXING SAID CONSTITUENTS IN SAID PREDETERMINED PROPORTION, AND TRANSFERRING SUCCESSIVE PORTIONS OF SAID ADMIXTURE TO A SURFACE HEATED TO A TEMPERATURE SUBSTANTIALLY ABOVE 136* C. TO COMPLETELY AND SUBTANTIALLY INSTANTANEOUSLY VOLATILIZE EACH OF THE CONSTITUENTS OF SAID ADMIXTURE.
Claim 2
Dependent Claim
59 words
METHOD FOR FORMING A PREDETERMINED PROPORTIONED INTIMATE MIXTURE IN TITANIUM TETRACHLORIDE AND SILICON TETRACHLORIDE IN GASEOUS FORM WHICH COMPRISES THE STEPS OFADMIXING SAID CONSTITUENTS IN SAID PREDETERMINED PROPORTION, AND TRANSFERRING SUCCESSIVE PORTIONS OF SAID ADMIXTURE TO A SURFACE HEATED TO A TEMPERATURE SUBSTANTIALLY ABOVE 136* C. TO COMPLETELY AND SUBTANTIALLY INSTANTANEOUSLY VOLATILIZE EACH OF THE CONSTITUENTS OF SAID ADMIXTURE.
References Cited (Backward Citations)
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US2311635A
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-28 | 1960-02-27 | 1960-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-28 | 1964-02-27 | 1964-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-28 | 1968-02-27 | 1968-08-28 | $7700.00 | Window Closed / Lapsed |