Patent US2768394A successfully refreshed from Google Patents.
US2768394A
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Disengageable drive means in a heading machine
Assignee: CHANDLER PRODUCTS Corp
•
Filing: 1953-05-20
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Granted: 1956-10-30
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Expires: 1973-05-20
Abstract
No abstract record available.
Inventors
- 👤 William E Ward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:04
CPC Classifications
B; B21; B21K; B21K1/00; B21K1/44; B21K1/46; B21K1/466
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) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |