US2463137A
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US
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Assignee: Individual
•
Filing: 1946-01-03
•
Granted: 1949-03-01
•
Expires: 1966-01-03
Abstract
No abstract record available.
Inventors
- 👤 Herman W Bahlke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:45
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/50; B01D29/56; B01D29/58; B01D29/11; B01D29/13; B01D29/23; B01D29/232; B01D29/235; B01D29/237; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49879
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189615354A
Cited
US1585246A
Cited
US1547246A
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US1539910A
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US1607027A
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US1830742A
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US1937415A
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US2218800A
Cited
US2284447A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-29 | 1952-08-30 | 1953-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-29 | 1956-08-30 | 1957-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-29 | 1960-08-30 | 1961-03-01 | $7700.00 | Window Closed / Lapsed |