US1894881A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leer feeding device
Assignee: Individual
•
Filing: 1931-05-01
•
Granted: 1933-01-17
•
Expires: 1951-05-01
Abstract
No abstract record available.
Inventors
- 👤 Mayo John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:58
CPC Classifications
C; C03; C03B; C03B35/00; C03B35/04; C03B35/06; C03B35/062
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) | 1936-01-17 | 1936-07-18 | 1937-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-01-17 | 1940-07-18 | 1941-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-01-17 | 1944-07-18 | 1945-01-17 | $7700.00 | Window Closed / Lapsed |