US2536690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1946-04-12
•
Granted: 1951-01-02
•
Expires: 1966-04-12
Abstract
No abstract record available.
Inventors
- 👤 Charles H Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:18
CPC Classifications
B; B01; B01D; B01D25/00; B01D25/22; B01D25/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US290046A
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US658573A
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US824487A
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US915650A
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US1223299A
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US1976547A
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US1977174A
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US2330945A
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US2444147A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-01 | 1954-07-03 | 1955-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-01 | 1958-07-03 | 1959-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-01 | 1962-07-03 | 1963-01-02 | $7700.00 | Window Closed / Lapsed |