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Patent US3474800A successfully refreshed from Google Patents.
US3474800A
Expired / Lapsed
US
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Transfer apparatus
Assignee: Electrical and Mechanical Service Co
•
Filing: 1966-11-21
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Granted: 1969-10-28
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Expires: 1986-11-21
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Gilewski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:41
CPC Classifications
B; B65; B65G; B65G49/00; B65G49/02; B65G49/04; B65G49/0409; B65G49/0436; B65G49/044; B65G49/045; B65G49/0454; B65G49/0459
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1729891A
Cited
US1836444A
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FR1034653A
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US2869734A
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US3049247A
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US2803356A
Cited
US2980264A
Cited
US3119499A
Cited
US3288309A
Cited
US3247974A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |