US2990295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deposition of aluminum
Assignee: Union Carbide Corp
•
Filing: 1958-11-07
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Granted: 1961-06-27
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Expires: 1978-11-07
Abstract
No abstract record available.
Inventors
- 👤 Breining Elmer Robert
- 👤 Wilbur M Bolton
- 👤 Fritz O Deutscher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:57
CPC Classifications
C; C23; C23C; C23C16/00; C23C16/06; C23C16/18; C23C16/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
IN AN ALUMINUM DEPOSITION PROCESS, WHEREIN A SUBSTRATE IS HEATED IN THE PRESENCE OF A HEAT DECOMPOSABLE ORGANO-ALUMINUM COMPOUND TO DEPOSIT ALUMINUM ON THE SUBSTRATE, THE IMPROVEMENT WHICH COMPRISES THE STEP OF INTERMIXING, WITH THE GASEOUS PHASE OF A HEAT DECOMPOS-
Claim 2
Dependent Claim
41 words
IN AN ALUMINUM DEPOSITION PROCESS, WHEREIN A SUBSTRATE IS HEATED IN THE PRESENCE OF A HEAT DECOMPOSABLE ORGANO-ALUMINUM COMPOUND TO DEPOSIT ALUMINUM ON THE SUBSTRATE, THE IMPROVEMENT WHICH COMPRISES THE STEP OF INTERMIXING, WITH THE GASEOUS PHASE OF A HEAT DECOMPOS-
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) | 1964-06-26 | 1964-12-26 | 1965-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-26 | 1968-12-26 | 1969-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-26 | 1972-12-26 | 1973-06-27 | $7700.00 | Window Closed / Lapsed |