US2461895A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiplying apparatus
Assignee: Interchemical Corp
•
Filing: 1946-12-03
•
Granted: 1949-02-15
•
Expires: 1966-12-03
Abstract
No abstract record available.
Inventors
- 👤 Arthur C Hardy
- 👤 Edward C Dench
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:32
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/46; H04N1/56; H04N1/60; H04N1/6016; H04N1/6022; G; G06; G06G; G06G7/00; G06G7/12; G06G7/16; G06G7/161; G06G7/32; G06G7/34; G06G7/48; G06G7/75; H04N1/603; H04N1/6033
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2401779A
Cited
US2381826A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-15 | 1952-08-16 | 1953-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-15 | 1956-08-16 | 1957-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-15 | 1960-08-16 | 1961-02-15 | $7700.00 | Window Closed / Lapsed |