US1753352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hand or angle piece for dental purposes
Assignee: Evonik Operations GmbH
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Filing: 1929-04-25
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Granted: 1930-04-08
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Expires: 1949-04-25
Abstract
No abstract record available.
Inventors
- 👤 Stark Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:19
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/08; A61C1/18; A61C1/185
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) | 1933-04-07 | 1933-10-07 | 1934-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-04-07 | 1937-10-07 | 1938-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-04-07 | 1941-10-07 | 1942-04-08 | $7700.00 | Window Closed / Lapsed |