US2644097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Article grading apparatus
Assignee: AUTOMATIC X RAY CORP
•
Filing: 1951-02-19
•
Granted: 1953-06-30
•
Expires: 1971-02-19
Abstract
No abstract record available.
Inventors
- 👤 Harold D Roop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:08
CPC Classifications
B; B07; B07C; B07C5/00; B07C5/34; B07C5/3416
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2507304A
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US2468350A
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US2499222A
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US2546271A
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US2557581A
Cited
US2512355A
Cited
US2561182A
Cited
US2539203A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-29 | 1956-12-29 | 1957-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-29 | 1960-12-29 | 1961-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-29 | 1964-12-29 | 1965-06-30 | $7700.00 | Window Closed / Lapsed |