US1042691A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnet controlling device.
Assignee: Individual
•
Filing: 1911-01-18
•
Granted: 1912-10-29
•
Expires: 1931-01-18
Abstract
No abstract record available.
Inventors
- 👤 Haroutiun K Kouyoumjian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:28
CPC Classifications
F; F02; F02D; F02D41/00; F02D41/20; Y; Y10; Y10T; Y10T83/00; Y10T83/869; Y10T83/8765
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1915-10-29 | 1916-04-29 | 1916-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1919-10-29 | 1920-04-29 | 1920-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1923-10-29 | 1924-04-29 | 1924-10-29 | $7700.00 | Window Closed / Lapsed |