Patent US2998937A successfully refreshed from Google Patents.
US2998937A
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US
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Winding apparatus for dynamo electric machines
Assignee: Unisys Corp
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Filing: 1957-10-15
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Granted: 1961-09-05
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Expires: 1977-10-15
Abstract
No abstract record available.
Inventors
- 👤 Francis M Potter
- 👤 George B Achtmeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:52
CPC Classifications
H; H02; H02K; H02K15/00; H02K15/08; H02K15/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1370744A
Cited
US1407033A
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US1431947A
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CH152366A
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US1977828A
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US2304520A
Cited
US2389336A
Cited
US2624518A
Cited
US2579585A
Cited
US2647696A
Cited
US2632602A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-04 | 1965-03-06 | 1965-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-04 | 1969-03-06 | 1969-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-04 | 1973-03-06 | 1973-09-05 | $7700.00 | Window Closed / Lapsed |