US1923539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of anticorrosive protective coatings on light metals
Assignee: Siemens Elektro Osmose GmbH
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Filing: 1930-09-16
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Granted: 1933-08-22
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Expires: 1950-09-16
Abstract
No abstract record available.
Inventors
- 👤 Jenny Alexander
- 👤 Siebeneicher Heinz
- 👤 Budiloff Nicolai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:56
CPC Classifications
C; C25; C25D; C25D11/00; C25D11/02; C25D11/04; C25D11/06; C25D11/08; C25D11/024; C25D11/14; C25D11/30
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) | 1936-08-21 | 1937-02-20 | 1937-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-08-21 | 1941-02-20 | 1941-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-08-21 | 1945-02-20 | 1945-08-22 | $7700.00 | Window Closed / Lapsed |