US2903424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of wool scouring waste
Assignee: Individual
•
Filing: 1954-09-14
•
Granted: 1959-09-08
•
Expires: 1974-09-14
Abstract
No abstract record available.
Inventors
- 👤 Fong Willie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:40
CPC Classifications
C; C11; C11B; C11B11/00; C11B11/005; D; D01; D01B; D01B3/00; D01B3/04; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/74
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1170868A
Cited
US1757526A
Cited
US2345827A
Cited
GB508371A
Cited
US2261924A
Cited
US2261919A
Cited
US2421094A
Cited
US2719118A
Cited
US2692184A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |