US2677148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spinneret
Assignee: Akzo Nobel UK PLC
•
Filing: 1950-06-02
•
Granted: 1954-05-04
•
Expires: 1970-06-02
Abstract
No abstract record available.
Inventors
- 👤 Wesley L Webb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:12
CPC Classifications
D; D01; D01D; D01D4/00; D01D4/02; D01D4/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US749725A
Cited
US974130A
Cited
FR472409A
Cited
US1492594A
Cited
US1708715A
Cited
US1980234A
Cited
US1999072A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-03 | 1957-11-02 | 1958-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-03 | 1961-11-02 | 1962-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-03 | 1965-11-02 | 1966-05-04 | $7700.00 | Window Closed / Lapsed |