US2615192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary brush for cleaning venetian blinds
Assignee: Individual
•
Filing: 1947-07-05
•
Granted: 1952-10-28
•
Expires: 1967-07-05
Abstract
No abstract record available.
Inventors
- 👤 John P Morell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:36
CPC Classifications
A; A47; A47L; A47L4/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1237047A
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DE366608C
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DE384493C
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US1578495A
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US1788172A
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US2246036A
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US2277444A
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US2321179A
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US2273514A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-28 | 1956-04-28 | 1956-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-28 | 1960-04-28 | 1960-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-28 | 1964-04-28 | 1964-10-28 | $7700.00 | Window Closed / Lapsed |