US2828070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric computer
Assignee: Universal Oil Products Co
•
Filing: 1954-12-31
•
Granted: 1958-03-25
•
Expires: 1974-12-31
Abstract
No abstract record available.
Inventors
- 👤 Jr David M Boyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:23
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/48; G06G7/75
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2637495A
Cited
US2713457A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |