US2040157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanism for delivering material
Assignee: AM Byers Co
•
Filing: 1932-08-10
•
Granted: 1936-05-12
•
Expires: 1952-08-10
Abstract
No abstract record available.
Inventors
- 👤 Edward B Story
- 👤 William T Case
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:25
CPC Classifications
C; C21; C21C; C21C3/00; G; G01; G01G; G01G13/00; G01G13/24; G01G13/30; G01G13/32; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0324; Y10T137/0357; Y10T137/6851; Y10T137/7039; Y10T137/7287; Y10T137/7313; Y10T137/7722
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) | 1939-05-12 | 1939-11-11 | 1940-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-05-12 | 1943-11-11 | 1944-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-05-12 | 1947-11-11 | 1948-05-12 | $7700.00 | Window Closed / Lapsed |