US2038746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically controlled automatic weighing device for paving plants
Assignee: MADSEN IRON WORKS Ltd
•
Filing: 1931-08-24
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Granted: 1936-04-28
•
Expires: 1951-08-24
Abstract
No abstract record available.
Inventors
- 👤 Madsen Martin
- 👤 Albert H Ziegler
- 👤 Harry B Parrot
- 👤 Harold M Ruth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:56
CPC Classifications
G; G01; G01G; G01G19/00; G01G19/22; Y; Y10; Y10S; Y10S177/00; Y10S177/07
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) | 1939-04-28 | 1939-10-28 | 1940-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-04-28 | 1943-10-28 | 1944-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-04-28 | 1947-10-28 | 1948-04-28 | $7700.00 | Window Closed / Lapsed |