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US6778A
Expired / Lapsed
US
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Burring-cylinder
Assignee: —
•
Filing: —
•
Granted: 1849-10-09
•
Expires: 1866-10-09
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:38
CPC Classifications
D; D01; D01G; D01G15/00; D01G15/84; D01G15/88
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) | 1852-10-08 | 1853-04-09 | 1853-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1856-10-08 | 1857-04-09 | 1857-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1860-10-08 | 1861-04-09 | 1861-10-09 | $7700.00 | Window Closed / Lapsed |