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US2647790A
Expired / Lapsed
US
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Automobile door construction
Assignee: Individual
•
Filing: 1952-04-09
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Granted: 1953-08-04
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Expires: 1972-04-09
Abstract
No abstract record available.
Inventors
- 👤 Edward L Blackman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:22
CPC Classifications
B; B60; B60J; B60J5/00; B60J5/04; B60J5/047; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18888; Y10T74/1892; Y10T74/1896
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2535347A
Cited
US2499749A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-03 | 1957-02-02 | 1957-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-03 | 1961-02-02 | 1961-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-03 | 1965-02-02 | 1965-08-04 | $7700.00 | Window Closed / Lapsed |