US2854309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Desk attachment
Assignee: Individual
•
Filing: 1953-11-20
•
Granted: 1958-09-30
•
Expires: 1973-11-20
Abstract
No abstract record available.
Inventors
- 👤 Levine Boris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:41
CPC Classifications
A; A47; A47B; A47B17/00; A47B17/06; A47B17/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US138406A
Cited
US349875A
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US584314A
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US654922A
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US1688456A
Cited
US1849726A
Cited
US2035488A
Cited
GB457999A
Cited
US2468473A
Cited
US2590959A
Cited
DE804846C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-29 | 1962-03-31 | 1962-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-29 | 1966-03-31 | 1966-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-29 | 1970-03-31 | 1970-09-30 | $7700.00 | Window Closed / Lapsed |