Patent US3535530A successfully refreshed from Google Patents.
US3535530A
Expired / Lapsed
US
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Timing module for selectively energizing and deenergizing inductive loads
Assignee: Texas Instruments Inc
•
Filing: 1967-12-21
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Granted: 1970-10-20
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Expires: 1987-12-21
Abstract
No abstract record available.
Inventors
- 👤 Oscar J Cooper
- 👤 Alfred H Filskov Jr
- 👤 John A King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:27
CPC Classifications
G; G03; G03B; G03B7/00; G03B7/08; G03B7/081; G03B7/087
Claims Analysis
Total Claims: 0
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US3417253A
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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) | 1973-10-19 | 1974-04-20 | 1974-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-19 | 1978-04-20 | 1978-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-19 | 1982-04-20 | 1982-10-20 | $7700.00 | Window Closed / Lapsed |