Patent US691820A successfully refreshed from Google Patents.
US691820A
Expired / Lapsed
US
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Electromedical belt.
Assignee: ISAAC N WILLARD
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Filing: 1899-08-23
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Granted: 1902-01-28
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Expires: 1919-08-23
Abstract
No abstract record available.
Inventors
- 👤 Samuel J Spalding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:52
CPC Classifications
B; B68; B68B; B68B1/00; A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/0404; A61N1/0472; A61N1/0484; A43; A43B; A43B3/00; A43B3/34
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) | 1905-01-27 | 1905-07-29 | 1906-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1909-01-27 | 1909-07-29 | 1910-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1913-01-27 | 1913-07-29 | 1914-01-28 | $7700.00 | Window Closed / Lapsed |