US712538A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Line-spacing mechanism for type-writers.
Assignee: WAGNER TYPEWRITER Co
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Filing: 1901-12-30
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Granted: 1902-11-04
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Expires: 1921-12-30
Abstract
No abstract record available.
Inventors
- 👤 Charles W Howell Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:14
CPC Classifications
B; B41; B41J; B41J19/00; B41J19/76
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) | 1905-11-03 | 1906-05-05 | 1906-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1909-11-03 | 1910-05-05 | 1910-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1913-11-03 | 1914-05-05 | 1914-11-04 | $7700.00 | Window Closed / Lapsed |