US2025528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating with chromium
Assignee: Individual
•
Filing: 1933-05-20
•
Granted: 1935-12-24
•
Expires: 1953-05-20
Abstract
No abstract record available.
Inventors
- 👤 Schreiber Ernst Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:21
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/16; C23C18/18; C23C18/1851; C23C18/1872; C23C18/1886; C23C18/1893; C23C18/1855; C23C18/1889; C23C18/20; C23C18/22; C23C18/28; C23C18/285; C23C18/31; C23C18/42; C23C18/44
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) | 1938-12-23 | 1939-06-24 | 1939-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-12-23 | 1943-06-24 | 1943-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-12-23 | 1947-06-24 | 1947-12-24 | $7700.00 | Window Closed / Lapsed |