Patent US3512189A successfully refreshed from Google Patents.
US3512189A
Expired / Lapsed
US
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Patient's aid device
Assignee: CARMEN A SWANSON
•
Filing: 1967-05-15
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Granted: 1970-05-19
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Expires: 1987-05-15
Abstract
No abstract record available.
Inventors
- 👤 Carmen A Swanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:56
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/10; A61G7/1025; A61G7/103; A61G7/05; A61G7/065; A61G7/1038
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3162864A
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US3145397A
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US3201172A
Cited
DE1198005B
Cited
US3205010A
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US3335434A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |