US2748671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper-making machines
Assignee: Beloit Iron Works Inc
•
Filing: 1953-01-12
•
Granted: 1956-06-05
•
Expires: 1973-01-12
Abstract
No abstract record available.
Inventors
- 👤 Heys Ralph Chalinor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:54
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/48; D21F1/50; D21F2/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2686463A
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US2694346A
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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) | 1959-06-05 | 1959-12-05 | 1960-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-05 | 1963-12-05 | 1964-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-05 | 1967-12-05 | 1968-06-05 | $7700.00 | Window Closed / Lapsed |