Patent US1063971A successfully refreshed from Google Patents.
US1063971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemical-feed device.
Assignee: Individual
•
Filing: 1912-09-11
•
Granted: 1913-06-10
•
Expires: 1932-09-11
Abstract
No abstract record available.
Inventors
- 👤 Ralph Hilscher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:33
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/01; G05D23/13; G05D23/1306; G05D23/1313; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2514; Y10T137/2521
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) | 1916-06-09 | 1916-12-09 | 1917-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1920-06-09 | 1920-12-09 | 1921-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1924-06-09 | 1924-12-09 | 1925-06-10 | $7700.00 | Window Closed / Lapsed |