US2417388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sericeous fibers
Assignee: CHEMICAL LAB Inc
•
Filing: 1944-08-10
•
Granted: 1947-03-11
•
Expires: 1964-08-10
Abstract
No abstract record available.
Inventors
- 👤 Thomas C Whitner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:00
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/01; D06M15/15; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US643923A
Cited
US653014A
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US2072870A
Cited
US1992202A
Cited
US2189918A
Cited
DE672116C
Cited
GB485920A
Cited
US2305006A
Cited
US2310257A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-10 | 1950-09-09 | 1951-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-10 | 1954-09-09 | 1955-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-10 | 1958-09-09 | 1959-03-11 | $7700.00 | Window Closed / Lapsed |