Patent US2804561A successfully refreshed from Google Patents.
US2804561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray camera
Assignee: Individual
•
Filing: 1951-06-01
•
Granted: 1957-08-27
•
Expires: 1971-06-01
Abstract
No abstract record available.
Inventors
- 👤 Sheldon Edward Emanuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:39
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/49
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2203347A
Cited
US2219113A
Cited
US2177259A
Cited
US2198479A
Cited
US2270373A
Cited
US2297478A
Cited
US2344042A
Cited
US2344043A
Cited
US2433941A
Cited
US2640162A
Cited
US2555545A
Cited
US2690516A
Cited
USRE23802E
Cited
US2697182A
Cited
US2700116A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-26 | 1961-02-25 | 1961-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-26 | 1965-02-25 | 1965-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-26 | 1969-02-25 | 1969-08-27 | $7700.00 | Window Closed / Lapsed |