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US3464766A
Expired / Lapsed
US
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Stereo-image alternator system
Assignee: United States Department of the Interior
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Filing: 1966-10-28
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Granted: 1969-09-02
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Expires: 1986-10-28
Abstract
No abstract record available.
Inventors
- 👤 Jack William Knauf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:24
CPC Classifications
G; G01; G01C; G01C11/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191212797A
Cited
US1753622A
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AT147586B
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US2273512A
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US2492870A
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US2552975A
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US2696752A
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US2747461A
Cited
US2727432A
Cited
US2833178A
Cited
US3228285A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-01 | 1973-03-03 | 1973-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-01 | 1977-03-03 | 1977-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-01 | 1981-03-03 | 1981-09-02 | $7700.00 | Window Closed / Lapsed |