Patent DE527678C successfully refreshed from Google Patents.
US3013250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Typewriting calculating machine
Assignee: International Business Machines Corp
•
Filing: 1957-05-17
•
Granted: 1961-12-12
•
Expires: 1977-05-17
Abstract
No abstract record available.
Inventors
- 👤 Gerald A Maley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:12
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/48; G06F7/491; G06F7/4915; G06F15/00; G06F15/04; G06F3/00; G06F3/01; G06F3/02; G06F3/0227; G06Q; G06Q40/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2636672A
Cited
US2761621A
Cited
US2770797A
Cited
BE526058A
Cited
US2866177A
Cited
US2798216A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |