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Patent US2553028A successfully refreshed from Google Patents.
US2553028A
Expired / Lapsed
US
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Guide for postioning x-ray lamps
Assignee: Individual
•
Filing: 1948-05-12
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Granted: 1951-05-15
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Expires: 1968-05-12
Abstract
No abstract record available.
Inventors
- 👤 John S Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:43
CPC Classifications
G; G03; G03B; G03B42/00; G03B42/02; G03B42/04; G03B42/042; A; A61; A61B; A61B6/00; A61B6/44; A61B6/4429; A61B6/4435; A61B6/50; A61B6/51; A61B6/512
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-14 | 1954-11-13 | 1955-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-14 | 1958-11-13 | 1959-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-14 | 1962-11-13 | 1963-05-15 | $7700.00 | Window Closed / Lapsed |