US1692275A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hopper feed for metal-working machines
Assignee: National Screw and Manufacturing Co
•
Filing: 1924-11-01
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Granted: 1928-11-20
•
Expires: 1944-11-01
Abstract
No abstract record available.
Inventors
- 👤 Benjamin H Mortus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:06
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/02; B65G47/04; B65G47/12; B65G47/14; B65G47/1407; B65G47/1478; Y; Y10; Y10T; Y10T408/00; Y10T408/52
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) | 1931-11-20 | 1932-05-21 | 1932-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-11-20 | 1936-05-21 | 1936-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-11-20 | 1940-05-21 | 1940-11-20 | $7700.00 | Window Closed / Lapsed |