Patent US3135489A successfully refreshed from Google Patents.
Patent US2881040A successfully refreshed from Google Patents.
US2881040A
Expired / Lapsed
US
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Disappearing and slidable step-chair for kitchen cabinets and the like
Assignee: Individual
•
Filing: 1957-11-20
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Granted: 1959-04-07
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Expires: 1977-11-20
Abstract
No abstract record available.
Inventors
- 👤 Hartridge Virginia Masden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:06
CPC Classifications
A; A47; A47B; A47B77/00; A47B77/04; A47B77/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1513907A
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US1473736A
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US1568498A
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US1996074A
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GB417791A
Cited
US2098655A
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US2087695A
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US2625984A
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US2801894A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-06 | 1962-10-06 | 1963-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-06 | 1966-10-06 | 1967-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-06 | 1970-10-06 | 1971-04-07 | $7700.00 | Window Closed / Lapsed |