Patent US4500963A successfully refreshed from Google Patents.
US698171A
Expired / Lapsed
US
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Apparatus for manufacturing conical tubes.
Assignee: Individual
•
Filing: 1901-06-08
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Granted: 1902-04-22
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Expires: 1921-06-08
Abstract
No abstract record available.
Inventors
- 👤 Emil Bock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:33
CPC Classifications
B; B21; B21D; B21D11/00; B21D11/02
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) | 1905-04-21 | 1905-10-21 | 1906-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1909-04-21 | 1909-10-21 | 1910-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1913-04-21 | 1913-10-21 | 1914-04-22 | $7700.00 | Window Closed / Lapsed |