Patent US2754579A successfully refreshed from Google Patents.
US2754579A
Expired / Lapsed
US
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Method of making a motor end frame
Assignee: Motors Liquidation Co
•
Filing: 1953-04-21
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Granted: 1956-07-17
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Expires: 1973-04-21
Abstract
No abstract record available.
Inventors
- 👤 Ralph K Shewmon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:06
CPC Classifications
H; H02; H02K; H02K5/00; H02K5/04; H02K5/16; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009; Y10T29/4998; Y10T29/49988
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1185366A
Cited
US1440549A
Cited
US1669938A
Cited
US1996181A
Cited
US2057207A
Cited
US2273931A
Cited
US2266968A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-17 | 1960-01-16 | 1960-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-17 | 1964-01-16 | 1964-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-17 | 1968-01-16 | 1968-07-17 | $7700.00 | Window Closed / Lapsed |