Patent US2828172A successfully refreshed from Google Patents.
US2828172A
Expired / Lapsed
US
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Medical examination, operating, and x-ray table
Assignee: Ritter Co Inc
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Filing: 1956-12-26
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Granted: 1958-03-25
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Expires: 1976-12-26
Abstract
No abstract record available.
Inventors
- 👤 Robert L Mcdonald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:46
CPC Classifications
A; A61; A61B; A61B6/00; A61B6/04; A61G; A61G13/00; A61G13/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US743508A
Cited
US2172941A
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US2217783A
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US2222888A
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US2520455A
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US2534623A
Cited
US2573563A
Cited
US2636348A
Cited
US2764459A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |