Patent US1003720A successfully refreshed from Google Patents.
US1003720A
Expired / Lapsed
US
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Manufacture of screens or colored surfaces for color photography.
Assignee: Plaques & Produits Dufay SA
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Filing: 1908-05-23
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Granted: 1911-09-19
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Expires: 1928-05-23
Abstract
No abstract record available.
Inventors
- 👤 Louis Dufay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:05
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/0005; G03F7/0007
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) | 1914-09-18 | 1915-03-20 | 1915-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1918-09-18 | 1919-03-20 | 1919-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1922-09-18 | 1923-03-20 | 1923-09-19 | $7700.00 | Window Closed / Lapsed |