Patent US2275595A successfully refreshed from Google Patents.
US2275595A
Expired / Lapsed
US
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Pulverizer
Assignee: Babcock and Wilcox Co
•
Filing: 1938-04-22
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Granted: 1942-03-10
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Expires: 1958-04-22
Abstract
No abstract record available.
Inventors
- 👤 Sidney T Schwartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:53
CPC Classifications
B; B02; B02C; B02C15/00; B02C15/12; B07; B07B; B07B4/00; B07B4/02; B07B4/025; B02C2015/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-03-09 | 1945-09-08 | 1946-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-03-09 | 1949-09-08 | 1950-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-03-09 | 1953-09-08 | 1954-03-10 | $7700.00 | Window Closed / Lapsed |