US1103548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning apparatus.
Assignee: SPENCER TURBINE CLEANER Co
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Filing: 1908-04-08
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Granted: 1914-07-14
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Expires: 1928-04-08
Abstract
No abstract record available.
Inventors
- 👤 Ira H Spencer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:07
CPC Classifications
B; B01; B01D; B01D50/00
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) | 1917-07-13 | 1918-01-12 | 1918-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1921-07-13 | 1922-01-12 | 1922-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1925-07-13 | 1926-01-12 | 1926-07-14 | $7700.00 | Window Closed / Lapsed |