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US2742973A
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Assignee: Individual
•
Filing: 1953-01-28
•
Granted: 1956-04-24
•
Expires: 1973-01-28
Abstract
No abstract record available.
Inventors
- 👤 Johannesen Hans Arne Ingolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:25
CPC Classifications
A; A61; A61G; A61G5/00; A61G5/06; A61G5/061; A61G5/063; A61G5/065; Y; Y10; Y10S; Y10S180/00; Y10S180/907; Y10S280/00; Y10S280/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1191394A
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US1262806A
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US1259064A
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US1348568A
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US1551127A
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US2138239A
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US2399605A
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US2400824A
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US2592023A
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US2633363A
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US2641325A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-24 | 1959-10-24 | 1960-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-24 | 1963-10-24 | 1964-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-24 | 1967-10-24 | 1968-04-24 | $7700.00 | Window Closed / Lapsed |