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US2891502A
Expired / Lapsed
US
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Automatic degaussing control system
Assignee: Individual
•
Filing: 1957-01-28
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Granted: 1959-06-23
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Expires: 1977-01-28
Abstract
No abstract record available.
Inventors
- 👤 Jr John L Cochran
- 👤 Nicholas B Michel
- 👤 Reed A Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:51
CPC Classifications
B; B63; B63G; B63G9/00; B63G9/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2421583A
Cited
US2730063A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-22 | 1962-12-22 | 1963-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-22 | 1966-12-22 | 1967-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-22 | 1970-12-22 | 1971-06-23 | $7700.00 | Window Closed / Lapsed |