US2027399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric control apparatus
Assignee: Individual
•
Filing: 1931-12-10
•
Granted: 1936-01-14
•
Expires: 1951-12-10
Abstract
No abstract record available.
Inventors
- 👤 Ostermeier Johannes
- 👤 Michel Johann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:54
CPC Classifications
G; G08; G08B; G08B13/00; G08B13/22; G08B13/26; H; H01; H01J; H01J17/00; H01J17/02; H01J17/30
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) | 1939-01-13 | 1939-07-15 | 1940-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-01-13 | 1943-07-15 | 1944-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-01-13 | 1947-07-15 | 1948-01-14 | $7700.00 | Window Closed / Lapsed |