US3402285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Calculating apparatus
Assignee: Wang Laboratories Inc
•
Filing: 1964-09-22
•
Granted: 1968-09-17
•
Expires: 1984-09-22
Abstract
No abstract record available.
Inventors
- 👤 Wang An
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:35
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/48; G06F7/491; G06F7/498; G06F15/00; G06F15/02; G06F7/544; G06F7/556; G06F9/00; G06F9/06; G06F9/30; G06F9/30003; G06F9/30007; G06F9/3001
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3099742A
Cited
US3141963A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-17 | 1972-03-18 | 1972-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-17 | 1976-03-18 | 1976-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-17 | 1980-03-18 | 1980-09-17 | $7700.00 | Window Closed / Lapsed |