US3029020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Data-conversion devices
Assignee: Individual
•
Filing: 1958-05-05
•
Granted: 1962-04-10
•
Expires: 1978-05-05
Abstract
No abstract record available.
Inventors
- 👤 Dirks Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:51
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/06; G06F3/08; G11; G11B; G11B5/00; G11B5/012; G11B5/02; G11B5/09; G11B5/48; G11B5/49; G11B7/00; G11B7/12; G11B7/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2540654A
Cited
US2727685A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-09 | 1965-10-09 | 1966-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-09 | 1969-10-09 | 1970-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-09 | 1973-10-09 | 1974-04-10 | $7700.00 | Window Closed / Lapsed |