US3218533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oscillator controlled electromagnetic drive
Assignee: Individual
•
Filing: 1960-12-12
•
Granted: 1965-11-16
•
Expires: 1980-12-12
Abstract
No abstract record available.
Inventors
- 👤 Reich Robert Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:48
CPC Classifications
G; G04; G04C; G04C3/00; G04C3/04; G04C3/06; G04C3/065; G04C3/066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2961587A
Cited
US2895095A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |