Patent US4337424A successfully refreshed from Google Patents.
US3530236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal converter to display physiological signals on conventional television receivers
Assignee: United States Department of the Air Force
•
Filing: 1968-07-30
•
Granted: 1970-09-22
•
Expires: 1988-07-30
Abstract
No abstract record available.
Inventors
- 👤 Adolf R Marko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:52
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/0093; A61B5/02; A61B5/0205; A61B5/24; A61B5/316; A61B5/318; A61B5/339; Y; Y10; Y10S; Y10S128/00; Y10S128/903
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2171216A
Cited
US2394196A
Cited
US2480636A
Cited
US2848648A
Cited
US3248650A
Cited
US3375509A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-21 | 1974-03-23 | 1974-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-21 | 1978-03-23 | 1978-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-21 | 1982-03-23 | 1982-09-22 | $7700.00 | Window Closed / Lapsed |