Patent US2347508A successfully refreshed from Google Patents.
US2347508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for dyeing vinyl copolymer fibers
Assignee: Carbide and Carbon Chemicals Corp
•
Filing: 1939-08-15
•
Granted: 1944-04-25
•
Expires: 1959-08-15
Abstract
No abstract record available.
Inventors
- 👤 Edward W Rugeley
- 👤 Jr Theophilus A Felld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:19
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/004; D06P1/00; D06P1/44; D06P1/64; D06P1/651; D06P1/65106; D06P1/65112; D06P1/65125; D06P1/65131
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1947-04-25 | 1947-10-25 | 1948-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-04-25 | 1951-10-25 | 1952-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-04-25 | 1955-10-25 | 1956-04-25 | $7700.00 | Window Closed / Lapsed |