US381091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of converting a photographic image on a gelatine surface into a relief or intaglio
Assignee: Individual
•
Filing: 1887-11-09
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Granted: 1888-04-10
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Expires: 1907-11-09
Abstract
No abstract record available.
Inventors
- 👤 Henry Sutton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:13
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/20; G03F7/2022
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) | 1891-04-10 | 1891-10-10 | 1892-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1895-04-10 | 1895-10-10 | 1896-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1899-04-10 | 1899-10-10 | 1900-04-11 | $7700.00 | Window Closed / Lapsed |