US2513677A
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Assignee: McGraw Electric Co
•
Filing: 1949-03-05
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Granted: 1950-07-04
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Expires: 1969-03-05
Abstract
No abstract record available.
Inventors
- 👤 Rigert Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:49
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/0005; H01H9/0027; H01H21/00; H01H21/02; H01H21/04; H01H21/08; H01H21/085; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18856; Y10T74/18864
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-03 | 1954-01-02 | 1954-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-03 | 1958-01-02 | 1958-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-03 | 1962-01-02 | 1962-07-04 | $7700.00 | Window Closed / Lapsed |