US1161350A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air-purifier and temperature-regulator.
Assignee: CLIFFORD L NILES
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Filing: 1914-07-25
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Granted: 1915-11-23
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Expires: 1934-07-25
Abstract
No abstract record available.
Inventors
- 👤 George Sinclair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:35
CPC Classifications
C; C23; C23C; C23C16/00; C23C16/44; C23C16/448; C23C16/4481; C23C16/4482; B; B01; B01F; B01F23/00; B01F23/20; B01F23/21; B01F23/213
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) | 1918-11-22 | 1919-05-24 | 1919-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1922-11-22 | 1923-05-24 | 1923-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1926-11-22 | 1927-05-24 | 1927-11-23 | $7700.00 | Window Closed / Lapsed |