Patent US3012258A successfully refreshed from Google Patents.
US3012258A
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Washer and screw assembly machine with electric control circuit completed by current flowing through washer at assembly station
Assignee: L J BARWOOD Manufacturing CO Inc
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Filing: 1957-09-26
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Granted: 1961-12-12
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Expires: 1977-09-26
Abstract
No abstract record available.
Inventors
- 👤 Warren B Schott
- 👤 John E Murphy
- 👤 Maio Anthony E Di
- 👤 Ralph G Carlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:56
CPC Classifications
B; B23; B23P; B23P19/00; B23P19/04; B23P19/08; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53039; Y10T29/53061; Y10T29/53313
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2613374A
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US2509056A
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US2711550A
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US2728091A
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US2803377A
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US2878556A
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US2931095A
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US2910768A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |