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Patent US2920446A successfully refreshed from Google Patents.
US2920446A
Expired / Lapsed
US
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Shock positioning means
Assignee: RTX Corp
•
Filing: 1957-04-23
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Granted: 1960-01-12
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Expires: 1977-04-23
Abstract
No abstract record available.
Inventors
- 👤 Elliot D Ranard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:44
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/04; F02C7/057; Y; Y10; Y10T; Y10T137/00; Y10T137/0536; Y10T137/0645; Y10T137/2496; Y10T137/2514; Y10T137/2521; Y10T137/2529
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |