Patent US704450A successfully refreshed from Google Patents.
US704450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ice-runway.
Assignee: Individual
•
Filing: 1902-02-19
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Granted: 1902-07-08
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Expires: 1922-02-19
Abstract
No abstract record available.
Inventors
- 👤 Frederick H Eichhorn
- 👤 Charles H Eichhorn
- 👤 Frederick P Dernell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:14
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/52; B65G47/68; B65G47/71
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) | 1905-07-07 | 1906-01-06 | 1906-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1909-07-07 | 1910-01-06 | 1910-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1913-07-07 | 1914-01-06 | 1914-07-08 | $7700.00 | Window Closed / Lapsed |