US2188466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indicating device
Assignee: Individual
•
Filing: 1939-02-25
•
Granted: 1940-01-30
•
Expires: 1959-02-25
Abstract
No abstract record available.
Inventors
- 👤 Fernand H Willemain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:10
CPC Classifications
G; G09; G09F; G09F3/00; G09F3/08; G09F3/12; E; E05; E05B; E05B77/00
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) | 1943-01-29 | 1943-07-31 | 1944-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-01-29 | 1947-07-31 | 1948-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-01-29 | 1951-07-31 | 1952-01-30 | $7700.00 | Window Closed / Lapsed |