US2819406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray apparatus
Assignee: KELEKET X RAY CORP
•
Filing: 1953-06-02
•
Granted: 1958-01-07
•
Expires: 1973-06-02
Abstract
No abstract record available.
Inventors
- 👤 Jr George F Frecking
- 👤 Walter H Haupt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:45
CPC Classifications
G; G21; G21K; G21K1/00; G21K1/02; G21K1/025; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20732; Y10T74/20762; Y10T74/20768; Y10T74/20774
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US620192A
Cited
US2311581A
Cited
US1164724A
Cited
US1586027A
Cited
US1599434A
Cited
US1813383A
Cited
US1921627A
Cited
US2456079A
Cited
US2673626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-06 | 1961-07-08 | 1962-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-06 | 1965-07-08 | 1966-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-06 | 1969-07-08 | 1970-01-07 | $7700.00 | Window Closed / Lapsed |