US3487375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-program data processor
Assignee: Unisys Corp
•
Filing: 1967-06-19
•
Granted: 1969-12-30
•
Expires: 1987-06-19
Abstract
No abstract record available.
Inventors
- 👤 Charles E Macon
- 👤 Robert S Barton
- 👤 Paul A Quantz
- 👤 George T Shimabukuro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:13
CPC Classifications
G; G06; G06F; G06F9/00; G06F9/06; G06F9/46; G06F9/48; G06F9/4806; G06F9/4843; G06F3/00; G06F3/06; G06F3/0601; G06F9/44; G06F9/448; G06F9/4482; G06F9/4484; G06F3/0668; G06F3/0671; G06F3/0673
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3351909A
Cited
US3332070A
Cited
US3297999A
Cited
US3341817A
Cited
US3333251A
Cited
US3387277A
Cited
US3387283A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |