US2514366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1945-09-19
•
Granted: 1950-07-11
•
Expires: 1965-09-19
Abstract
No abstract record available.
Inventors
- 👤 Robert W Beyland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:54
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/11; B01D39/00; B01D39/14; B01D39/16; B01D39/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US888259A
Cited
US1468906A
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US1705019A
Cited
US2057932A
Cited
US2141903A
Cited
US2279699A
Cited
US2295823A
Cited
US2378879A
Cited
US2358748A
Cited
US2372669A
Cited
US2374755A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-10 | 1954-01-09 | 1954-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-10 | 1958-01-09 | 1958-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-10 | 1962-01-09 | 1962-07-11 | $7700.00 | Window Closed / Lapsed |