US3517349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Miniature electromechanical filter with magnetic drive
Assignee: General Electric Co
•
Filing: 1967-08-11
•
Granted: 1970-06-23
•
Expires: 1987-08-11
Abstract
No abstract record available.
Inventors
- 👤 William E Engeler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:17
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2553491A
Cited
US3200354A
Cited
US3295064A
Cited
US3277405A
Cited
US3283271A
Cited
US3413573A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-22 | 1973-12-22 | 1974-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-22 | 1977-12-22 | 1978-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-22 | 1981-12-22 | 1982-06-23 | $7700.00 | Window Closed / Lapsed |