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Patent US2933929A successfully refreshed from Google Patents.
US2933929A
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Adjustable reciprocating mechanical movement
Assignee: F J RIEF JR
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Filing: 1957-04-01
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Granted: 1960-04-26
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Expires: 1977-04-01
Abstract
No abstract record available.
Inventors
- 👤 Russell E Rosendahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:39
CPC Classifications
A; A61; A61G; A61G13/00; A61G13/10; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18152
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US915181A
Cited
US1226430A
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US1239909A
Cited
US1977188A
Cited
US2628645A
Cited
US2604067A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-26 | 1963-10-26 | 1964-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-26 | 1967-10-26 | 1968-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-26 | 1971-10-26 | 1972-04-26 | $7700.00 | Window Closed / Lapsed |