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US1671010A
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Mask
Assignee: GEORGE ARNOLD FRICK
•
Filing: 1925-01-12
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Granted: 1928-05-22
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Expires: 1945-01-12
Abstract
No abstract record available.
Inventors
- 👤 Alfred H Braecklein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:01
CPC Classifications
A; A61; A61M; A61M15/00; A61M15/0001; A61M15/0013; A61M15/0016; A61M15/0018; A61M16/00; A61M16/06; A61M16/0683; A61M16/01
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) | 1931-05-22 | 1931-11-21 | 1932-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-05-22 | 1935-11-21 | 1936-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-05-22 | 1939-11-21 | 1940-05-22 | $7700.00 | Window Closed / Lapsed |