US2625460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and means for recording phenomena by means of standing waves
Assignee: TECHNICON CARDIOGRAPH Corp
•
Filing: 1947-04-26
•
Granted: 1953-01-13
•
Expires: 1967-04-26
Abstract
No abstract record available.
Inventors
- 👤 Jerry L Cloud
- 👤 Marchand Nathan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:15
CPC Classifications
G; G01; G01R; G01R27/00; G01R27/02; G01R27/04; G01R27/06; G01R13/00; G01R13/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US713479A
Cited
US1820088A
Cited
US2106713A
Cited
GB472158A
Cited
US2248604A
Cited
US2308204A
Cited
US2453645A
Cited
US2449451A
Cited
US2537193A
Cited
US2560903A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-13 | 1956-07-14 | 1957-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-13 | 1960-07-14 | 1961-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-13 | 1964-07-14 | 1965-01-13 | $7700.00 | Window Closed / Lapsed |