US2648077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transfer mechanism
Assignee: National Machinery Co
•
Filing: 1946-08-03
•
Granted: 1953-08-11
•
Expires: 1966-08-03
Abstract
No abstract record available.
Inventors
- 👤 John H Friedman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:24
CPC Classifications
B; B21; B21J; B21J13/00; B21J13/08; B21K; B21K27/00; B21K27/02; B21K27/04; B23; B23F; B23F23/00; B23F23/02; B23F23/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE17990E
Cited
US2100028A
Cited
US1982460A
Cited
US2128186A
Cited
US2360906A
Cited
US2544218A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-10 | 1957-02-09 | 1957-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-10 | 1961-02-09 | 1961-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-10 | 1965-02-09 | 1965-08-11 | $7700.00 | Window Closed / Lapsed |