US2165168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color reproduction
Assignee: Interchemical Corp
•
Filing: 1937-01-21
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Granted: 1939-07-04
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Expires: 1957-01-21
Abstract
No abstract record available.
Inventors
- 👤 Arthur C Hardy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:38
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/46; H04N1/56; H04N1/60; G; G03; G03B; G03B27/00; G03B27/72; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/36; G03C7/00; G03C7/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-07-03 | 1943-01-02 | 1943-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-07-03 | 1947-01-02 | 1947-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-07-03 | 1951-01-02 | 1951-07-04 | $7700.00 | Window Closed / Lapsed |