US2942792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sorting of scrap metal
Assignee: American Smelting and Refining Co
•
Filing: 1957-07-30
•
Granted: 1960-06-28
•
Expires: 1977-07-30
Abstract
No abstract record available.
Inventors
- 👤 Biard E Anderson
- 👤 Waldo C Larson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:42
CPC Classifications
B; B03; B03B; B03B9/00; B03B9/06; B03B9/061; Y; Y10; Y10S; Y10S241/00; Y10S241/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1927207A
Cited
US2031683A
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US2059229A
Cited
US2428777A
Cited
US2430762A
Cited
US2656118A
Cited
US2746603A
Cited
DE936441C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |