US1848571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aib gttn
Assignee: —
•
Filing: —
•
Granted: 1932-03-08
•
Expires: 1949-03-08
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:57
CPC Classifications
F; F41; F41A; F41A21/00; F41A21/48; F41A21/482; F41A17/00; F41A17/34; F41A17/38; F41A9/00; F41A9/61; F41A9/64; F41A9/72; F41B; F41B11/00; F41B11/50; F41B11/51
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) | 1935-03-08 | 1935-09-07 | 1936-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-03-08 | 1939-09-07 | 1940-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-03-08 | 1943-09-07 | 1944-03-08 | $7700.00 | Window Closed / Lapsed |