Patent US2799550A successfully refreshed from Google Patents.
US2799550A
Expired / Lapsed
US
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Door biasing device
Assignee: Motors Liquidation Co
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Filing: 1955-01-04
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Granted: 1957-07-16
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Expires: 1975-01-04
Abstract
No abstract record available.
Inventors
- 👤 Fraucis I Rataiczak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:24
CPC Classifications
F; F24; F24C; F24C15/00; F24C15/02; F24C15/023; F25; F25D; F25D23/00; F25D23/02; F25D23/025; Y; Y10; Y10S; Y10S16/00; Y10S16/09
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) | 1960-07-15 | 1961-01-14 | 1961-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-15 | 1965-01-14 | 1965-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-15 | 1969-01-14 | 1969-07-16 | $7700.00 | Window Closed / Lapsed |