US1337251A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1919-06-17
•
Granted: 1920-04-20
•
Expires: 1939-06-17
Abstract
No abstract record available.
Inventors
- 👤 George F Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:38
CPC Classifications
B; B01; B01D; B01D25/00; B01D25/12; B01D25/172; B01D25/176; B01D25/21; B01D25/215; B01D25/28
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) | 1923-04-20 | 1923-10-20 | 1924-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-04-20 | 1927-10-20 | 1928-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-04-20 | 1931-10-20 | 1932-04-20 | $7700.00 | Window Closed / Lapsed |