US932548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for recovery of ingredients of oily ink.
Assignee: Individual
•
Filing: 1908-07-21
•
Granted: 1909-08-31
•
Expires: 1928-07-21
Abstract
No abstract record available.
Inventors
- 👤 Matthew S Hopkins
- 👤 Charles Ridgely Barnett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:10
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/02; C09D11/06; D; D06; D06F; D06F43/00; D06F43/08; D06F43/081; D06F43/083; C01; C01P; C01P2006/00; C01P2006/60
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) | 1912-08-30 | 1913-03-01 | 1913-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-08-30 | 1917-03-01 | 1917-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-08-30 | 1921-03-01 | 1921-08-31 | $7700.00 | Window Closed / Lapsed |