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US2837307A
Expired / Lapsed
US
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Supports
Assignee: Franklin X Ray Corp
•
Filing: 1954-01-27
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Granted: 1958-06-03
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Expires: 1974-01-27
Abstract
No abstract record available.
Inventors
- 👤 George W Schwager
- 👤 William J Hogan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:12
CPC Classifications
A; A61; A61B; A61B6/00; A61B6/44; A61B6/4429; A61B6/4464
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US565076A
Cited
US1530063A
Cited
US1065155A
Cited
US2036097A
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US2061723A
Cited
US2200518A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-02 | 1961-12-02 | 1962-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-02 | 1965-12-02 | 1966-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-02 | 1969-12-02 | 1970-06-03 | $7700.00 | Window Closed / Lapsed |