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US3380165A
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Assignee: ROBERT P URBAN
•
Filing: 1965-10-06
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Granted: 1968-04-30
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Expires: 1985-10-06
Abstract
No abstract record available.
Inventors
- 👤 Robert P Urbau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:33
CPC Classifications
G; G01; G01C; G01C1/00; G01B; G01B5/00; G01B5/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE15461C
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US787248A
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GB191029318A
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US1366878A
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DE603608C
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GB668229A
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US2689412A
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FR1221713A
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US3047956A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |