US1852261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
piatt
Assignee: —
•
Filing: —
•
Granted: 1932-04-05
•
Expires: 1949-04-05
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:42
CPC Classifications
F; F02; F02M; F02M1/00; F02M1/04; Y; Y10; Y10T; Y10T137/00; Y10T137/1842; Y10T137/1939; Y10T137/1963; Y10T137/6416; Y10T137/6443; Y10T137/647; Y10T137/7287; Y10T137/7358; Y10T137/7404; Y10T137/7413; Y10T137/8593; Y10T137/86187
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) | 1935-04-05 | 1935-10-05 | 1936-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-04-05 | 1939-10-05 | 1940-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-04-05 | 1943-10-05 | 1944-04-05 | $7700.00 | Window Closed / Lapsed |