Patent US39968A successfully refreshed from Google Patents.
US39968A
Expired / Lapsed
US
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Improvement in varnish for making printers ink and for other purposes
Assignee: —
•
Filing: —
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Granted: 1863-09-15
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Expires: 1880-09-15
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:07
CPC Classifications
C; C09; C09D; C09D193/00
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) | 1866-09-14 | 1867-03-16 | 1867-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1870-09-14 | 1871-03-16 | 1871-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1874-09-14 | 1875-03-16 | 1875-09-15 | $7700.00 | Window Closed / Lapsed |