US2428046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial filaments
Assignee: Individual
•
Filing: 1943-08-03
•
Granted: 1947-09-30
•
Expires: 1963-08-03
Abstract
No abstract record available.
Inventors
- 👤 Wayne A Sisson
- 👤 Wesley L Webb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:21
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/28; D01D5/30; D01D5/32; D01F; D01F2/00; Y; Y10; Y10S; Y10S425/00; Y10S425/217; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2922; Y10T428/2924; Y10T428/2933; Y10T428/2964; Y10T428/2965; Y10T428/2973
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-09-29 | 1951-03-31 | 1951-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-29 | 1955-03-31 | 1955-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-29 | 1959-03-31 | 1959-09-30 | $7700.00 | Window Closed / Lapsed |