US2742667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spinnerets
Assignee: Rhodiaceta SA
•
Filing: 1952-02-29
•
Granted: 1956-04-24
•
Expires: 1972-02-29
Abstract
No abstract record available.
Inventors
- 👤 Clouzeau Claude
- 👤 Etienne Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:13
CPC Classifications
D; D01; D01D; D01D4/00; D01D4/02; D01D4/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-24 | 1959-10-24 | 1960-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-24 | 1963-10-24 | 1964-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-24 | 1967-10-24 | 1968-04-24 | $7700.00 | Window Closed / Lapsed |