US2522936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for fluffing asbestos
Assignee: Individual
•
Filing: 1948-05-17
•
Granted: 1950-09-19
•
Expires: 1968-05-17
Abstract
No abstract record available.
Inventors
- 👤 James E Ferguson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:25
CPC Classifications
B; B28; B28B; B28B1/00; B28B1/52; B28C; B28C5/00; B28C5/40; B28C5/404
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1852712A
Cited
US2124086A
Cited
US2165101A
Cited
US2295155A
Cited
US2311588A
Cited
US2367486A
Cited
US2449732A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-18 | 1954-03-20 | 1954-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-18 | 1958-03-20 | 1958-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-18 | 1962-03-20 | 1962-09-19 | $7700.00 | Window Closed / Lapsed |