US1083485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Purifier.
Assignee: Individual
•
Filing: 1912-09-12
•
Granted: 1914-01-06
•
Expires: 1932-09-12
Abstract
No abstract record available.
Inventors
- 👤 John P Farmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:24
CPC Classifications
F; F03; F03B; F03B11/00; F03B11/02; F16; F16L; F16L3/00; F16L3/01; Y; Y02; Y02E; Y02E10/00; Y02E10/20; Y10; Y10T; Y10T137/00; Y10T137/8593
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) | 1917-01-05 | 1917-07-07 | 1918-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1921-01-05 | 1921-07-07 | 1922-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1925-01-05 | 1925-07-07 | 1926-01-06 | $7700.00 | Window Closed / Lapsed |