US2780342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Positive drive work feeder
Assignee: Westinghouse Electric Corp
•
Filing: 1951-03-14
•
Granted: 1957-02-05
•
Expires: 1971-03-14
Abstract
No abstract record available.
Inventors
- 👤 Paul F Good
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:32
CPC Classifications
C; C21; C21D; C21D9/00; C21D9/0006; C21D9/0018; B; B65; B65G; B65G59/00; B65G59/06; B65G59/067; B65G59/068
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-05 | 1960-08-06 | 1961-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-05 | 1964-08-06 | 1965-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-05 | 1968-08-06 | 1969-02-05 | $7700.00 | Window Closed / Lapsed |