Patent US3549004A successfully refreshed from Google Patents.
US3549004A
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US
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Belt flattening device
Assignee: AMF Inc
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Filing: 1967-12-11
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Granted: 1970-12-22
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Expires: 1987-12-11
Abstract
No abstract record available.
Inventors
- 👤 Benjamin Zysman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:27
CPC Classifications
B; B65; B65G; B65G21/00; B65G21/20; B65G21/2027; A; A24; A24B; A24B3/00; A24B3/14; B65G15/00; B65G15/60; D; D21; D21F; D21F1/00; D21F1/36; D21F1/365; B65G2201/00; B65G2201/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-21 | 1974-06-22 | 1974-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-21 | 1978-06-22 | 1978-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-21 | 1982-06-22 | 1982-12-22 | $7700.00 | Window Closed / Lapsed |