US2608910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Screening of fibrous material
Assignee: Individual
•
Filing: 1946-04-26
•
Granted: 1952-09-02
•
Expires: 1966-04-26
Abstract
No abstract record available.
Inventors
- 👤 Mccrystle John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:24
CPC Classifications
D; D21; D21D; D21D5/00; D21D5/02; D21D5/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1313145A
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US795883A
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US834596A
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GB190726296A
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US927885A
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US955898A
Cited
US1919201A
Cited
US2409524A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-02 | 1956-03-03 | 1956-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-02 | 1960-03-03 | 1960-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-02 | 1964-03-03 | 1964-09-02 | $7700.00 | Window Closed / Lapsed |