US2775792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for treatment of fibers
Assignee: Monsanto Chemicals Ltd
•
Filing: 1953-03-31
•
Granted: 1957-01-01
•
Expires: 1973-03-31
Abstract
No abstract record available.
Inventors
- 👤 Wallace A Beardsell
- 👤 Walter M Davis
- 👤 Ralph S Hood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:14
CPC Classifications
D; D01; D01G; D01G29/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1542180A
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US1941666A
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US1956450A
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US2115218A
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US2107960A
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GB479227A
Cited
GB504086A
Cited
US2443512A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-01 | 1960-07-02 | 1961-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-01 | 1964-07-02 | 1965-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-01 | 1968-07-02 | 1969-01-01 | $7700.00 | Window Closed / Lapsed |