US1940386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the control of vibrating generators
Assignee: Hitachi Rail STS USA Inc
•
Filing: 1930-11-01
•
Granted: 1933-12-19
•
Expires: 1950-11-01
Abstract
No abstract record available.
Inventors
- 👤 Paul N Bossart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:35
CPC Classifications
B; B61; B61L; B61L1/00; B61L1/18; B61L1/181; B61L1/182
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) | 1936-12-18 | 1937-06-19 | 1937-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-12-18 | 1941-06-19 | 1941-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-12-18 | 1945-06-19 | 1945-12-19 | $7700.00 | Window Closed / Lapsed |