Patent US2777531A successfully refreshed from Google Patents.
US2777531A
Expired / Lapsed
US
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Emergency crash seat
Assignee: Individual
•
Filing: 1954-10-22
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Granted: 1957-01-15
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Expires: 1974-10-22
Abstract
No abstract record available.
Inventors
- 👤 Norman R Erickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:20
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/24; B60N2/42; B60N2/4207; B60N2/4214; B60N2/4221; B60N2/427; B60N2/42727; B60N2/42736; B60N2/42772; B60N2/4279
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1250155A
Cited
US2433950A
Cited
US2510115A
Cited
US2611562A
Cited
DE832856C
Cited
US2660222A
Cited
US2660715A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-15 | 1960-07-16 | 1961-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-15 | 1964-07-16 | 1965-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-15 | 1968-07-16 | 1969-01-15 | $7700.00 | Window Closed / Lapsed |