Patent US3049604A successfully refreshed from Google Patents.
US3049604A
Expired / Lapsed
US
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Commutator and method of making same
Assignee: Individual
•
Filing: 1958-07-18
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Granted: 1962-08-14
•
Expires: 1978-07-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Edward W Showalter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:17
CPC Classifications
H; H01; H01H; H01H11/00; H01H11/04; 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)
US1595107A
Cited
US2199240A
Cited
US2181083A
Cited
US2553292A
Cited
US2949592A
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US2668894A
Cited
US2786985A
Cited
US2759074A
Cited
US2789187A
Cited
US2796473A
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US2825960A
Cited
US2832127A
Cited
US2881273A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-13 | 1966-02-12 | 1966-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-13 | 1970-02-12 | 1970-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-13 | 1974-02-12 | 1974-08-14 | $7700.00 | Window Closed / Lapsed |