US3516060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Analog comparator
Assignee: McDonnell Douglas Corp
•
Filing: 1965-10-21
•
Granted: 1970-06-02
•
Expires: 1985-10-21
Abstract
No abstract record available.
Inventors
- 👤 William C Hutton
- 👤 Robert C Reibold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:39
CPC Classifications
G; G01; G01R; G01R31/00; G01R31/28; G01R31/317; G01R31/31703; G01R31/3181; G01R31/319; G01R31/3193; G01R31/31932
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2774056A
Cited
US2840308A
Cited
US3213298A
Cited
US3175212A
Cited
US3302109A
Cited
US3358231A
Cited
US3371198A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |