US2497674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window washer
Assignee: Individual
•
Filing: 1945-11-14
•
Granted: 1950-02-14
•
Expires: 1965-11-14
Abstract
No abstract record available.
Inventors
- 👤 Kolchinsky Ushir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:59
CPC Classifications
A; A47; A47L; A47L1/00; A47L1/06; A47L1/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US140228A
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CH37725A
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US1083071A
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US1151758A
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US1216399A
Cited
US1623004A
Cited
US1669293A
Cited
US1710079A
Cited
US1766529A
Cited
US1867558A
Cited
US1782506A
Cited
US2333854A
Cited
US2348502A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |