US2534951A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Universal electrical apparatus
Assignee: Individual
•
Filing: 1945-09-19
•
Granted: 1950-12-19
•
Expires: 1965-09-19
Abstract
No abstract record available.
Inventors
- 👤 Cargill Donald Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:12
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/14; H02K7/145; H02K7/10; Y; Y10; Y10T; Y10T279/00; Y10T279/35; Y10T29/00; Y10T29/51; Y10T29/5179; Y10T408/00; Y10T408/65; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19293; Y10T74/19298; Y10T74/19307
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1281629A
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US1384811A
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US1611042A
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US2277614A
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US2162251A
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US2234962A
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US2273626A
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US2370872A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-18 | 1954-06-19 | 1954-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-18 | 1958-06-19 | 1958-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-18 | 1962-06-19 | 1962-12-19 | $7700.00 | Window Closed / Lapsed |