US1719711A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic silver-halid emulsion
Assignee: GAF Chemicals Corp
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Filing: 1926-08-06
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Granted: 1929-07-02
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Expires: 1946-08-06
Abstract
No abstract record available.
Inventors
- 👤 Matthies Otto
- 👤 Dieterle Walter
- 👤 Reitstotter Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:31
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/04; G03C1/047
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) | 1932-07-01 | 1932-12-31 | 1933-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-07-01 | 1936-12-31 | 1937-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-07-01 | 1940-12-31 | 1941-07-02 | $7700.00 | Window Closed / Lapsed |