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Patent US2707292A successfully refreshed from Google Patents.
US2707292A
Expired / Lapsed
US
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Window washer unit having spraying means
Assignee: Associated Dev & Res Corp
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Filing: 1951-08-01
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Granted: 1955-05-03
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Expires: 1971-08-01
Abstract
No abstract record available.
Inventors
- 👤 Lustbader Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:55
CPC Classifications
A; A47; A47L; A47L1/00; A47L1/06; A47L1/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1930872A
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US1986248A
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US2083551A
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US1986250A
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GB422208A
Cited
US2186140A
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US2436454A
Cited
FR920280A
Cited
US2530161A
Cited
US2488682A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-02 | 1958-11-01 | 1959-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-02 | 1962-11-01 | 1963-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-02 | 1966-11-01 | 1967-05-03 | $7700.00 | Window Closed / Lapsed |