US2484642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Record card
Assignee: International Business Machines Corp
•
Filing: 1945-12-17
•
Granted: 1949-10-11
•
Expires: 1965-12-17
Abstract
No abstract record available.
Inventors
- 👤 Robert E Paris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:19
CPC Classifications
G; G06; G06K; G06K19/00; G06K19/06; G06K19/067
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1573174A
Cited
US758861A
Cited
US1203049A
Cited
US1478691A
Cited
US2171556A
Cited
US2244231A
Cited
US2350382A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-10 | 1953-04-11 | 1953-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-10 | 1957-04-11 | 1957-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-10 | 1961-04-11 | 1961-10-11 | $7700.00 | Window Closed / Lapsed |