US2495241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixing apparatus
Assignee: Armstrong World Industries Inc
•
Filing: 1945-10-31
•
Granted: 1950-01-24
•
Expires: 1965-10-31
Abstract
No abstract record available.
Inventors
- 👤 Eaby Le Roy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:18
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/02; B29B7/06; B29B7/10; B29B7/18; B29B7/183
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
US1355885A
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US1623159A
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GB253058A
Cited
US1703211A
Cited
US1775721A
Cited
US1977052A
Cited
US2027185A
Cited
US2215976A
Cited
GB552515A
Cited
US2351706A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-23 | 1953-07-25 | 1954-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-23 | 1957-07-25 | 1958-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-23 | 1961-07-25 | 1962-01-24 | $7700.00 | Window Closed / Lapsed |