Patent US3028732A successfully refreshed from Google Patents.
US3028732A
Expired / Lapsed
US
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Hydraulically operated elevating mechanisms for operating tables and the like
Assignee: SHAMPAINE
•
Filing: 1958-07-24
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Granted: 1962-04-10
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Expires: 1978-07-24
Abstract
No abstract record available.
Inventors
- 👤 Shampaine Hyman Robert
- 👤 Roy T Adolphson
- 👤 Jr John Douglass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:17
CPC Classifications
A; A61; A61G; A61G13/00; A61G13/02; A61G13/06
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-09 | 1965-10-09 | 1966-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-09 | 1969-10-09 | 1970-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-09 | 1973-10-09 | 1974-04-10 | $7700.00 | Window Closed / Lapsed |