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US1221518A
Expired / Lapsed
US
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Surgical appliance.
Assignee: Individual
•
Filing: 1915-10-08
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Granted: 1917-04-03
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Expires: 1935-10-08
Abstract
No abstract record available.
Inventors
- 👤 Henry Arthur Dygert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:59
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/41
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) | 1920-04-02 | 1920-10-02 | 1921-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-04-02 | 1924-10-02 | 1925-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-04-02 | 1928-10-02 | 1929-04-03 | $7700.00 | Window Closed / Lapsed |