US2139431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for applying metallic coatings to ceramic bodies
Assignee: Siemens and Halske AG
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Filing: 1936-06-11
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Granted: 1938-12-06
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Expires: 1956-06-11
Abstract
No abstract record available.
Inventors
- 👤 Vatter Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:03
CPC Classifications
C; C04; C04B; C04B37/00; C04B37/003; C04B37/006; C04B37/02; C04B37/023; C04B37/026; C04B2237/00; C04B2237/02; C04B2237/12; C04B2237/122; C04B2237/123; C04B2237/30; C04B2237/32; C04B2237/40; C04B2237/50; C04B2237/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1941-12-05 | 1942-06-06 | 1942-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-12-05 | 1946-06-06 | 1946-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-12-05 | 1950-06-06 | 1950-12-06 | $7700.00 | Window Closed / Lapsed |