US1098858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Producing chlorin derivatives of the amyl series.
Assignee: BASF SE
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Filing: 1913-02-27
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Granted: 1914-06-02
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Expires: 1933-02-27
Abstract
No abstract record available.
Inventors
- 👤 Franz Webel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:41
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/093; C07C17/10
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) | 1917-06-01 | 1917-12-01 | 1918-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1921-06-01 | 1921-12-01 | 1922-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1925-06-01 | 1925-12-01 | 1926-06-02 | $7700.00 | Window Closed / Lapsed |