US2420565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic textile articles
Assignee: Carbide and Carbon Chemicals Corp
•
Filing: 1943-02-20
•
Granted: 1947-05-13
•
Expires: 1963-02-20
Abstract
No abstract record available.
Inventors
- 👤 Edward W Rugeley
- 👤 Jr Theophilus A Feild
- 👤 John L Petrokubi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:20
CPC Classifications
D; D01; D01F; D01F6/00; D01F6/02; D01F6/08; Y; Y10; Y10S; Y10S260/00; Y10S260/23
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2245310A
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US2233442A
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US2277782A
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US2327460A
Cited
US2404781A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-05-12 | 1950-11-11 | 1951-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-05-12 | 1954-11-11 | 1955-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-05-12 | 1958-11-11 | 1959-05-13 | $7700.00 | Window Closed / Lapsed |