Patent US2748301A successfully refreshed from Google Patents.
US2748301A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric motor brush holder and frame adapted thereto
Assignee: LAMB ELECTRIC Co
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Filing: 1953-07-21
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Granted: 1956-05-29
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Expires: 1973-07-21
Abstract
No abstract record available.
Inventors
- 👤 Milton H Spielman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:29
CPC Classifications
H; H01; H01R; H01R39/00; H01R39/02; H01R39/38; H01R39/41
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1342583A
Cited
GB141892A
Cited
DE330170C
Cited
FR549343A
Cited
GB314806A
Cited
US1970604A
Cited
US2211006A
Cited
US2349401A
Cited
GB617387A
Cited
US2516608A
Cited
US2537714A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |