US2873208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deposition of refractory metals and alloys thereof
Assignee: US Philips Corp
•
Filing: 1955-09-26
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Granted: 1959-02-10
•
Expires: 1975-09-26
Abstract
No abstract record available.
Inventors
- 👤 Charlton Maurice George
- 👤 Davis George Leonard
- 👤 Gentry Charles Harold Raymond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:40
CPC Classifications
C; C23; C23C; C23C16/00; C23C16/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2096924A
Cited
GB432466A
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US2157498A
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US2408894A
Cited
US2390160A
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US2499977A
Cited
US2629672A
Cited
US2602033A
Cited
US2689807A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-09 | 1962-08-11 | 1963-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-09 | 1966-08-11 | 1967-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-09 | 1970-08-11 | 1971-02-10 | $7700.00 | Window Closed / Lapsed |