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US718758A
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Electrically-operated type-writing machine.
Assignee: PRENDERGAST ELECTRIC TYPEWRITER Co
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Filing: 1902-04-12
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Granted: 1903-01-20
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Expires: 1922-04-12
Abstract
No abstract record available.
Inventors
- 👤 John S Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:00
CPC Classifications
B; B41; B41J; B41J7/00; B41J7/54; B41J7/56; B41J7/62
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) | 1906-01-19 | 1906-07-21 | 1907-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1910-01-19 | 1910-07-21 | 1911-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1914-01-19 | 1914-07-21 | 1915-01-20 | $7700.00 | Window Closed / Lapsed |