US3021518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Complementing apparatus
Assignee: Unisys Corp
•
Filing: 1958-01-20
•
Granted: 1962-02-13
•
Expires: 1978-01-20
Abstract
No abstract record available.
Inventors
- 👤 Kliman Merwin
- 👤 Kass Seymour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:43
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2736017A
Cited
US1938899A
Cited
US2679644A
Cited
US2719290A
Cited
US2676289A
Cited
US2852764A
Cited
US2823344A
Cited
US2750584A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-12 | 1965-08-14 | 1966-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-12 | 1969-08-14 | 1970-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-12 | 1973-08-14 | 1974-02-13 | $7700.00 | Window Closed / Lapsed |