US2843875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spinnerette assembly
Assignee: Celanese Corp
•
Filing: 1954-07-12
•
Granted: 1958-07-22
•
Expires: 1974-07-12
Abstract
No abstract record available.
Inventors
- 👤 Arthur R Albohn
- 👤 Gregory M Moelter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:03
CPC Classifications
D; D01; D01D; D01D4/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US823009A
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GB312633A
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US1883423A
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US1922718A
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US2045722A
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US2051861A
Cited
US2316832A
Cited
US2253073A
Cited
DE863841C
Cited
US2589870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |