Patent US1991148A successfully refreshed from Google Patents.
US1991148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixing device
Assignee: Individual
•
Filing: 1930-08-11
•
Granted: 1935-02-12
•
Expires: 1950-08-11
Abstract
No abstract record available.
Inventors
- 👤 Gephart Valentine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:14
CPC Classifications
A; A47; A47L; A47L15/00; A47L15/42; A47L15/44; A47L15/4436
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) | 1938-02-11 | 1938-08-13 | 1939-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-02-11 | 1942-08-13 | 1943-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-02-11 | 1946-08-13 | 1947-02-12 | $7700.00 | Window Closed / Lapsed |