Patent US2991485A successfully refreshed from Google Patents.
US2991485A
Expired / Lapsed
US
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Invalid's apparatus
Assignee: Individual
•
Filing: 1956-08-27
•
Granted: 1961-07-11
•
Expires: 1976-08-27
Abstract
No abstract record available.
Inventors
- 👤 Frederick J Schulte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:24
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/10; A61G7/1013; A61G7/1017; A61G7/104; A61G7/1046; A61G7/1063; A61G7/1067; A61G7/1073; A61G7/1082; A61G7/1098; A61G2200/00; A61G2200/30; A61G2200/34; A61G2200/36; A61G2200/50; A61G2200/52; A61G7/1001; A61G7/1007
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2165700A
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US2539346A
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US2439163A
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US2614267A
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US2666930A
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US2565536A
Cited
US2610330A
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US2666212A
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US2777737A
Cited
US2792052A
Cited
US2821406A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |