US2747803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hammer rotor for hammermills
Assignee: Pettibone Traverse Lift LLC
•
Filing: 1952-07-09
•
Granted: 1956-05-29
•
Expires: 1972-07-09
Abstract
No abstract record available.
Inventors
- 👤 Hanse Albert Benard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:23
CPC Classifications
B; B02; B02C; B02C13/00; B02C13/26; B02C13/28; B02C13/2804
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US781748A
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US1714098A
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US1865860A
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US1996485A
Cited
DE676106C
Cited
US2585943A
Cited
US2378475A
Cited
US2482712A
Cited
DE821589C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |