US2553936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reclaiming machine
Assignee: Individual
•
Filing: 1948-07-02
•
Granted: 1951-05-22
•
Expires: 1968-07-02
Abstract
No abstract record available.
Inventors
- 👤 Ben F Patrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:31
CPC Classifications
C; C22; C22B; C22B11/00; C22B11/10; Y; Y10; Y10S; Y10S494/00; Y10S494/902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US355958A
Cited
US604978A
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US739081A
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US1003118A
Cited
US1220051A
Cited
US1204231A
Cited
US1232104A
Cited
US1361723A
Cited
US1456737A
Cited
US1951108A
Cited
GB418518A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |