Patent US2561405A successfully refreshed from Google Patents.
US2561405A
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US
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Resilient motivating device
Assignee: John B. Pierce Laboratory
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Filing: 1947-10-03
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Granted: 1951-07-24
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Expires: 1967-10-03
Abstract
No abstract record available.
Inventors
- 👤 Joseph F O'brien
- 👤 John B Cataldo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:19
CPC Classifications
H; H01; H01H; H01H13/00; H01H13/02; H01H13/26; H01H13/48; F; F16; F16F; F16F1/00; F16F1/02; F16F1/32; F16F1/322; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-23 | 1955-01-22 | 1955-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-23 | 1959-01-22 | 1959-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-23 | 1963-01-22 | 1963-07-24 | $7700.00 | Window Closed / Lapsed |