US2435658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Illuminated discharge effects upon acetate fabrics
Assignee: Celanese Corp
•
Filing: 1944-07-19
•
Granted: 1948-02-10
•
Expires: 1964-07-19
Abstract
No abstract record available.
Inventors
- 👤 George W Seymour
- 👤 George C Ward
- 👤 Robert L Hunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:27
CPC Classifications
D; D06; D06P; D06P5/00; D06P5/15; D06P5/155
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1816766A
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US1864007A
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DE529480C
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US2005182A
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GB400643A
Cited
US2010854A
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US2029351A
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US2115374A
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US2193749A
Cited
GB495403A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-02-09 | 1951-08-11 | 1952-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-02-09 | 1955-08-11 | 1956-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-02-09 | 1959-08-11 | 1960-02-10 | $7700.00 | Window Closed / Lapsed |