Patent US4219902A successfully refreshed from Google Patents.
US2425170A
Expired / Lapsed
US
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Continuous head turning machine
Assignee: Bridgeport Brass Co
•
Filing: 1942-06-04
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Granted: 1947-08-05
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Expires: 1962-06-04
Abstract
No abstract record available.
Inventors
- 👤 Karl F Wunsch
- 👤 John E Ferguson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:27
CPC Classifications
B; B23; B23B; B23B9/00; B23B9/08; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5124; Y10T29/5127; Y10T29/5134
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) | 1950-08-04 | 1951-02-03 | 1951-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-04 | 1955-02-03 | 1955-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-04 | 1959-02-03 | 1959-08-05 | $7700.00 | Window Closed / Lapsed |