US1937743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing means
Assignee: Individual
•
Filing: 1931-10-26
•
Granted: 1933-12-05
•
Expires: 1951-10-26
Abstract
No abstract record available.
Inventors
- 👤 Winfred M Brooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:10
CPC Classifications
G; G09; G09F; G09F3/00; G09F3/02; G09F3/03; G09F3/0305; G09F3/0347; G09F3/0358; Y; Y10; Y10T; Y10T292/00; Y10T292/48; Y10T292/513; Y10T292/528
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) | 1936-12-04 | 1937-06-05 | 1937-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-12-04 | 1941-06-05 | 1941-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-12-04 | 1945-06-05 | 1945-12-05 | $7700.00 | Window Closed / Lapsed |