US2775996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sleeping chair-unit
Assignee: Individual
•
Filing: 1952-09-16
•
Granted: 1957-01-01
•
Expires: 1972-09-16
Abstract
No abstract record available.
Inventors
- 👤 Millar David Tulledge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:30
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/24; B60N2/32; B60N2/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US22782A
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US331434A
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US354127A
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US366741A
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US749097A
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US636725A
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US837050A
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US1058575A
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FR545646A
Cited
US1723235A
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US2075449A
Cited
GB593542A
Cited
US2608366A
Cited
US2604141A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-01 | 1960-07-02 | 1961-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-01 | 1964-07-02 | 1965-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-01 | 1968-07-02 | 1969-01-01 | $7700.00 | Window Closed / Lapsed |