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Patent US2658430A successfully refreshed from Google Patents.
US2658430A
Expired / Lapsed
US
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Papermaking machine
Assignee: Individual
•
Filing: 1950-01-28
•
Granted: 1953-11-10
•
Expires: 1970-01-28
Abstract
No abstract record available.
Inventors
- 👤 Samuel S Stevens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:29
CPC Classifications
D; D21; D21F; D21F9/00; D21F9/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US693895A
Cited
DE528352C
Cited
US2005839A
Cited
US2162097A
Cited
US2200002A
Cited
US2203802A
Cited
US2243773A
Cited
US2304735A
Cited
US2329553A
Cited
US2402063A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-09 | 1957-05-11 | 1957-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-09 | 1961-05-11 | 1961-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-09 | 1965-05-11 | 1965-11-10 | $7700.00 | Window Closed / Lapsed |