US2600964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for reduction of frangible material
Assignee: Pennsylvania Crusher Co
•
Filing: 1948-04-01
•
Granted: 1952-06-17
•
Expires: 1968-04-01
Abstract
No abstract record available.
Inventors
- 👤 George W Borton
- 👤 Stanley D Hartshorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:35
CPC Classifications
B; B02; B02C; B02C17/00; B02C17/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2914A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-17 | 1955-12-17 | 1956-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-17 | 1959-12-17 | 1960-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-17 | 1963-12-17 | 1964-06-17 | $7700.00 | Window Closed / Lapsed |