Patent US2649142A successfully refreshed from Google Patents.
US2649142A
Expired / Lapsed
US
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Headrest appliance
Assignee: Individual
•
Filing: 1951-10-22
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Granted: 1953-08-18
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Expires: 1971-10-22
Abstract
No abstract record available.
Inventors
- 👤 New Leo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:19
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/80; B60N2/806; B60N2/838; B60N2/841; B60N2/85; B60N2/809; B60N2/812; B60N2/821
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-17 | 1957-02-16 | 1957-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-17 | 1961-02-16 | 1961-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-17 | 1965-02-16 | 1965-08-18 | $7700.00 | Window Closed / Lapsed |