Patent US1782814A successfully refreshed from Google Patents.
US1782814A
Expired / Lapsed
US
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Obstetrical extractor
Assignee: Individual
•
Filing: 1927-01-03
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Granted: 1930-11-25
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Expires: 1947-01-03
Abstract
No abstract record available.
Inventors
- 👤 Froehlich Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:23
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/42; A61B17/44; A61B17/442
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) | 1933-11-24 | 1934-05-26 | 1934-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-11-24 | 1938-05-26 | 1938-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-11-24 | 1942-05-26 | 1942-11-25 | $7700.00 | Window Closed / Lapsed |