Patent US4686965A successfully refreshed from Google Patents.
Patent US2625607A successfully refreshed from Google Patents.
US2625607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulse recording apparatus
Assignee: Eckert Mauchly Computer Corp
•
Filing: 1948-05-27
•
Granted: 1953-01-13
•
Expires: 1968-05-27
Abstract
No abstract record available.
Inventors
- 👤 Jr John Presper Eckert
- 👤 Jr John C Sims
- 👤 Welsh Herbert Frazer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:45
CPC Classifications
H; H04; H04L; H04L13/00; H04L13/02; H04L13/08; G; G11; G11B; G11B23/00; G11B23/0007; G11B5/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1848799A
Cited
US1419256A
Cited
US2158285A
Cited
US2229326A
Cited
US2300463A
Cited
US2424295A
Cited
US2403009A
Cited
US2423339A
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 |