Patent US4936252A successfully refreshed from Google Patents.
Patent US2996738A successfully refreshed from Google Patents.
US2996738A
Expired / Lapsed
US
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Machine for assembling omicron-rings on depending bolt shanks
Assignee: Olympic Screw and Rivet Corp
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Filing: 1959-04-20
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Granted: 1961-08-22
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Expires: 1979-04-20
Abstract
No abstract record available.
Inventors
- 👤 Raymond O Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:31
CPC Classifications
B; B23; B23P; B23P19/00; B23P19/04; B23P19/08; B23P19/084; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53039; Y10T29/53043; Y10T29/53048; Y10T29/53061; Y10T29/53074; Y10T29/53313; Y10T29/53374; Y10T29/534; Y10T29/53404
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2214814A
Cited
US2284690A
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US2303225A
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US2613374A
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US2728091A
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US2878556A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-21 | 1965-02-20 | 1965-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-21 | 1969-02-20 | 1969-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-21 | 1973-02-20 | 1973-08-22 | $7700.00 | Window Closed / Lapsed |