US2998937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Winding apparatus for dynamo electric machines
Assignee: Unisys Corp
•
Filing: 1957-10-15
•
Granted: 1961-09-05
•
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 09:53
CPC Classifications
H; H02; H02K; H02K15/00; H02K15/08; H02K15/085
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1370744A
Cited
US1407033A
Cited
US1431947A
Cited
CH152366A
Cited
US1977828A
Cited
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 |