US2767929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversible hammermill with adjustable upper breaker blocks
Assignee: Bath Iron Works Corp
•
Filing: 1952-08-08
•
Granted: 1956-10-23
•
Expires: 1972-08-08
Abstract
No abstract record available.
Inventors
- 👤 Woodrow W West
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:58
CPC Classifications
B; B02; B02C; B02C13/00; B02C13/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191402759A
Cited
US2149571A
Cited
US2170407A
Cited
US2188230A
Cited
US2287799A
Cited
US2463223A
Cited
US2616466A
Cited
US2597333A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-23 | 1960-04-23 | 1960-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-23 | 1964-04-23 | 1964-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-23 | 1968-04-23 | 1968-10-23 | $7700.00 | Window Closed / Lapsed |