Patent US2695550A successfully refreshed from Google Patents.
US2695550A
Expired / Lapsed
US
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Sealing means for cylinder papermaking machines
Assignee: Black Clawson Co
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Filing: 1951-03-31
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Granted: 1954-11-30
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Expires: 1971-03-31
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph Baxter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:36
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/60; D21F9/00; D21F9/04; Y; Y10; Y10S; Y10S277/00; Y10S277/903
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE151697C
Cited
US888482A
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US953744A
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US1161747A
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US1166882A
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US1709026A
Cited
US2598094A
Cited
US2536634A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-29 | 1958-05-31 | 1958-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-29 | 1962-05-31 | 1962-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-29 | 1966-05-31 | 1966-11-30 | $7700.00 | Window Closed / Lapsed |