Patent US2744494A successfully refreshed from Google Patents.
US2744494A
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US
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Surface treating apparatus for upright wall surfaces
Assignee: Individual
•
Filing: 1952-09-23
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Granted: 1956-05-08
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Expires: 1972-09-23
Abstract
No abstract record available.
Inventors
- 👤 Stephen P Chappen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:42
CPC Classifications
B; B05; B05B; B05B13/00; B05B13/005; B05B13/02; B05B13/04; B05B13/0405; B05B13/041; B63; B63B; B63B59/00; B63B59/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1503282A
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US2081742A
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US2152274A
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US2212576A
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US2370780A
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US2367594A
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US2476299A
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US2508709A
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US2500660A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-08 | 1959-11-07 | 1960-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-08 | 1963-11-07 | 1964-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-08 | 1967-11-07 | 1968-05-08 | $7700.00 | Window Closed / Lapsed |