Patent US1100231A successfully refreshed from Google Patents.
US1100231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for indicating naphthalene in illuminating-gas.
Assignee: DU GAZ DE PARIS Ste
•
Filing: 1913-04-24
•
Granted: 1914-06-16
•
Expires: 1933-04-24
Abstract
No abstract record available.
Inventors
- 👤 Emile Sainte-Claire Deville
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:33
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/22; G01N1/24
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1917-06-15 | 1917-12-15 | 1918-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1921-06-15 | 1921-12-15 | 1922-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1925-06-15 | 1925-12-15 | 1926-06-16 | $7700.00 | Window Closed / Lapsed |