US2639860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Partial product machine
Assignee: —
•
Filing: —
•
Granted: 1953-05-26
•
Expires: 1970-05-26
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:24
CPC Classifications
G; G06; G06C; G06C15/00; G06C15/08; G06C15/20; G09; G09B; G09B19/00; G09B19/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2346834A
Cited
US207918A
Cited
US556720A
Cited
US2034724A
Cited
US1886148A
Cited
US1566962A
Cited
US2105640A
Cited
US2226919A
Cited
GB466933A
Cited
US647238A
Cited
US717125A
Cited
US775939A
Cited
US895664A
Cited
GB191109563A
Cited
US1221318A
Cited
US1088207A
Cited
US1140684A
Cited
US1289610A
Cited
US1237821A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-25 | 1956-11-24 | 1957-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-25 | 1960-11-24 | 1961-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-25 | 1964-11-24 | 1965-05-26 | $7700.00 | Window Closed / Lapsed |