Patent US3926265A successfully refreshed from Google Patents.
Patent US2101042A successfully refreshed from Google Patents.
US2101042A
Expired / Lapsed
US
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Method of and apparatus for treating materials
Assignee: CANADIAN LOCOMOTIVE Co LT
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Filing: 1935-01-23
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Granted: 1937-12-07
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Expires: 1955-01-23
Abstract
No abstract record available.
Inventors
- 👤 Casey William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:42
CPC Classifications
B; B01; B01D; B01D37/00; B01D37/02; B01D33/00; B01D33/04; B01D33/056; B01D33/44; B01D33/46; B01D33/58; B01D33/62; B01D33/64; B01D33/642; B01D33/68; B01D33/70; B01D33/72
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) | 1940-12-06 | 1941-06-07 | 1941-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-12-06 | 1945-06-07 | 1945-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-12-06 | 1949-06-07 | 1949-12-07 | $7700.00 | Window Closed / Lapsed |