Patent US1850392A successfully refreshed from Google Patents.
US1850392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cobpobated
Assignee: —
•
Filing: —
•
Granted: 1932-03-22
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Expires: 1949-03-22
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:22
CPC Classifications
B; B41; B41F; B41F3/00; B41F3/46; B41F3/58; F; F15; F15B; F15B9/00; F15B9/02; F15B9/08; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/304536; Y10T409/305936; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18072
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) | 1935-03-22 | 1935-09-21 | 1936-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-03-22 | 1939-09-21 | 1940-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-03-22 | 1943-09-21 | 1944-03-22 | $7700.00 | Window Closed / Lapsed |