Patent US880563A successfully refreshed from Google Patents.
US880563A
Expired / Lapsed
US
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Apparatus for drawing hard-metal tubes.
Assignee: Individual
•
Filing: 1902-03-07
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Granted: 1908-03-03
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Expires: 1922-03-07
Abstract
No abstract record available.
Inventors
- 👤 Balfour Fraser Mctear
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:22
CPC Classifications
B; B21; B21C; B21C3/00; B21C3/02; B21C3/12; B21C3/14
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) | 1911-03-03 | 1911-09-02 | 1912-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1915-03-03 | 1915-09-02 | 1916-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1919-03-03 | 1919-09-02 | 1920-03-03 | $7700.00 | Window Closed / Lapsed |