US1692544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic copying machine
Assignee: Photostat Corp
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Filing: 1924-01-19
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Granted: 1928-11-20
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Expires: 1944-01-19
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Caps
- 👤 Ivan E Leininger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:34
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/323
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) | 1931-11-20 | 1932-05-21 | 1932-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-11-20 | 1936-05-21 | 1936-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-11-20 | 1940-05-21 | 1940-11-20 | $7700.00 | Window Closed / Lapsed |