Patent US2844749A successfully refreshed from Google Patents.
US2844749A
Expired / Lapsed
US
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Dynamo electric machine commutator connection
Assignee: Motors Liquidation Co
•
Filing: 1955-07-13
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Granted: 1958-07-22
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Expires: 1975-07-13
Abstract
No abstract record available.
Inventors
- 👤 Karl P Shetterly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:33
CPC Classifications
H; H01; H01R; H01R39/00; H01R39/02; H01R39/32; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009; Y10T29/49011
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1747268A
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US1848142A
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US2175251A
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US2136814A
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US2389255A
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US2447718A
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US2572956A
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US2501348A
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US2680145A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |