US2462428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of dyeing glass fibers
Assignee: BASF Schweiz AG
•
Filing: 1944-08-29
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Granted: 1949-02-22
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Expires: 1964-08-29
Abstract
No abstract record available.
Inventors
- 👤 Roesti Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:20
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/465; C03C25/475
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR768282A
Cited
US2119189A
Cited
US2189918A
Cited
US2169546A
Cited
GB509408A
Cited
US2315329A
Cited
US2317965A
Cited
US2257076A
Cited
GB559329A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-22 | 1952-08-23 | 1953-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-22 | 1956-08-23 | 1957-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-22 | 1960-08-23 | 1961-02-22 | $7700.00 | Window Closed / Lapsed |