US2511246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for handling bulk insulating material
Assignee: Individual
•
Filing: 1947-03-14
•
Granted: 1950-06-13
•
Expires: 1967-03-14
Abstract
No abstract record available.
Inventors
- 👤 Harry C Chamberlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:00
CPC Classifications
B; B60; B60P; B60P3/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US892593A
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US1141113A
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US1263035A
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US1479990A
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US1450903A
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US1570360A
Cited
US1778393A
Cited
US2052169A
Cited
US2131305A
Cited
US2311773A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-12 | 1953-12-12 | 1954-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-12 | 1957-12-12 | 1958-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-12 | 1961-12-12 | 1962-06-13 | $7700.00 | Window Closed / Lapsed |