US1114058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning apparatus and dust-separator.
Assignee: SPENCER TURBINE CLEANER Co
•
Filing: 1907-11-22
•
Granted: 1914-10-20
•
Expires: 1927-11-22
Abstract
No abstract record available.
Inventors
- 👤 Ira H Spencer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:13
CPC Classifications
B; B01; B01D; B01D45/00; B01D45/12; B01D45/14; Y; Y10; Y10S; Y10S15/00; Y10S15/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1917-10-19 | 1918-04-20 | 1918-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1921-10-19 | 1922-04-20 | 1922-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1925-10-19 | 1926-04-20 | 1926-10-20 | $7700.00 | Window Closed / Lapsed |