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US1453310A
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Assignee: Buffalo Foundry & Machine Co
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Filing: 1920-02-25
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Granted: 1923-05-01
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Expires: 1940-02-25
Abstract
No abstract record available.
Inventors
- 👤 Sr Godfrey Engel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:42
CPC Classifications
B; B01; B01D; B01D24/00; B01D24/02; B01D24/04; B01D2201/00; B01D2201/30; B01D2201/301
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) | 1926-04-30 | 1926-10-30 | 1927-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-04-30 | 1930-10-30 | 1931-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-04-30 | 1934-10-30 | 1935-05-01 | $7700.00 | Window Closed / Lapsed |