Patent US799246A successfully refreshed from Google Patents.
US799246A
Expired / Lapsed
US
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Process of making tanning extracts.
Assignee: Individual
•
Filing: 1902-03-18
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Granted: 1905-09-12
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Expires: 1922-03-18
Abstract
No abstract record available.
Inventors
- 👤 Roberto Lepetit
- 👤 Ernesto Tagliani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:25
CPC Classifications
C; C14; C14C; C14C3/00; C14C3/02; C14C3/08; C14C3/10; C14C3/12; C07; C07C; C07C37/00
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) | 1908-09-11 | 1909-03-13 | 1909-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1912-09-11 | 1913-03-13 | 1913-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1916-09-11 | 1917-03-13 | 1917-09-12 | $7700.00 | Window Closed / Lapsed |