Patent US5271735A successfully refreshed from Google Patents.
US721270A
Expired / Lapsed
US
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Electric hand or foot heater.
Assignee: Individual
•
Filing: 1902-12-22
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Granted: 1903-02-24
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Expires: 1922-12-22
Abstract
No abstract record available.
Inventors
- 👤 Alois Zeckendorf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:42
CPC Classifications
A; A43; A43B; A43B3/00; A43B3/34; A43B3/35; A43B3/355
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) | 1906-02-23 | 1906-08-25 | 1907-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1910-02-23 | 1910-08-25 | 1911-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1914-02-23 | 1914-08-25 | 1915-02-24 | $7700.00 | Window Closed / Lapsed |