US3235418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing crystalline layers of high-boiling substances from the gaseous phase
Assignee: Siemens and Halske AG
•
Filing: 1963-06-12
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Granted: 1966-02-15
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Expires: 1983-06-12
Abstract
No abstract record available.
Inventors
- 👤 Nickl Julius
- 👤 Sirtl Erhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:50
CPC Classifications
C; C23; C23C; C23C16/00; C23C16/44; C23C16/455; C30; C30B; C30B25/00; C30B25/02; C30B25/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
THE METHOD OF PRODUCING CRYSTALLINE LAYERS OF HIGHBOILING SUBSTANCES BY THERMAL DISSOCIATION OF A GASEOUS COMPOUND AND PRECIPITATION OF THE EVOLVING SUBSTANCE UPON A HEATED SUBSTRATE, WHICH COMPRISES HEATING THE CARRIER IN AN EVACUATED REACTION VESSEL UP TO THE REACTION TEMPERATURE; THEN RAPIDLY ADMITTNG INTO THE REACTION VESSEL THE REACTION GAS CONTAINING THE GASEOUS COMPOUND TO BE DISSOCIATED, DURING AN INTERVAL OF ABOUT 1/10 TO 1/100 OF THE FOLLOWING PRECIPITATION PERIOD, THE SUBSTRATE REMAINING HEATED TO SAID REACTION TEMPERATURE DURING GAS ADMITTANCE AND PRECIPITATION; HERMETICALLY SEALING THE VES-
Claim 2
Independent Claim
88 words
THE METHOD OF PRODUCING CRYSTALLINE LAYERS OF HIGHBOILING SUBSTANCES BY THERMAL DISSOCIATION OF A GASEOUS COMPOUND AND PRECIPITATION OF THE EVOLVING SUBSTANCE UPON A HEATED SUBSTRATE, WHICH COMPRISES HEATING THE CARRIER IN AN EVACUATED REACTION VESSEL UP TO THE REACTION TEMPERATURE; THEN RAPIDLY ADMITTNG INTO THE REACTION VESSEL THE REACTION GAS CONTAINING THE GASEOUS COMPOUND TO BE DISSOCIATED, DURING AN INTERVAL OF ABOUT 1/10 TO 1/100 OF THE FOLLOWING PRECIPITATION PERIOD, THE SUBSTRATE REMAINING HEATED TO SAID REACTION TEMPERATURE DURING GAS ADMITTANCE AND PRECIPITATION; HERMETICALLY SEALING THE VES-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |