US2581242A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction drum winding machine
Assignee: JOHN WALDRON Corp
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Filing: 1947-08-25
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Granted: 1952-01-01
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Expires: 1967-08-25
Abstract
No abstract record available.
Inventors
- 👤 Charles A Dickhaut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:19
CPC Classifications
B; B65; B65H; B65H18/00; B65H18/08; B65H18/14; B65H18/16; B65H2405/00; B65H2405/40; B65H2405/45
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-31 | 1955-07-02 | 1956-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-31 | 1959-07-02 | 1960-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-31 | 1963-07-02 | 1964-01-01 | $7700.00 | Window Closed / Lapsed |