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Patent US2612648A successfully refreshed from Google Patents.
US2612648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceiling washer
Assignee: Individual
•
Filing: 1947-11-19
•
Granted: 1952-10-07
•
Expires: 1967-11-19
Abstract
No abstract record available.
Inventors
- 👤 Silas P Lagant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:24
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4036; A47L11/4038; A47L1/00; A47L1/02; A47L11/38; A47L11/4063; A47L11/4069; A47L11/408; A47L11/4088
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
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Cited
US1332640A
Cited
US1656996A
Cited
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Cited
US1927186A
Cited
US1919854A
Cited
US2101216A
Cited
US2238757A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-07 | 1956-04-07 | 1956-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-07 | 1960-04-07 | 1960-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-07 | 1964-04-07 | 1964-10-07 | $7700.00 | Window Closed / Lapsed |