US3424980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic dividing system for determining the ratio of two differences
Assignee: General Time Corp
•
Filing: 1965-05-10
•
Granted: 1969-01-28
•
Expires: 1985-05-10
Abstract
No abstract record available.
Inventors
- 👤 Wilmer C Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:17
CPC Classifications
G; G06; G06J; G06J1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2851596A
Cited
US2880612A
Cited
US2965891A
Cited
US2998917A
Cited
US3233176A
Cited
US3229110A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-28 | 1972-07-29 | 1973-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-28 | 1976-07-29 | 1977-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-28 | 1980-07-29 | 1981-01-28 | $7700.00 | Window Closed / Lapsed |