US3449517A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hall effect keyer
Assignee: NEOTEC Corp A CORP OF DE
•
Filing: 1967-03-29
•
Granted: 1969-06-10
•
Expires: 1987-03-29
Abstract
No abstract record available.
Inventors
- 👤 Richard H Turja
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:15
CPC Classifications
H; H04; H04L; H04L25/00; H04L25/38; H04L25/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2909679A
Cited
US3259755A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-09 | 1972-12-09 | 1973-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-09 | 1976-12-09 | 1977-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-09 | 1980-12-09 | 1981-06-10 | $7700.00 | Window Closed / Lapsed |