US3317873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-channel rotary transformer
Assignee: Individual
•
Filing: 1964-05-01
•
Granted: 1967-05-02
•
Expires: 1984-05-01
Abstract
No abstract record available.
Inventors
- 👤 Himmelstein Sydney
- 👤 Howard S Knaack
- 👤 Richard S Tveter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:34
CPC Classifications
H; H01; H01F; H01F38/00; H01F38/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-01 | 1970-10-31 | 1971-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-01 | 1974-10-31 | 1975-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-01 | 1978-10-31 | 1979-05-02 | $7700.00 | Window Closed / Lapsed |