US3022578A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Discontinuity depth gauge
Assignee: Boeing Co
•
Filing: 1958-02-26
•
Granted: 1962-02-27
•
Expires: 1978-02-26
Abstract
No abstract record available.
Inventors
- 👤 Bobly H Seibel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:50
CPC Classifications
G; G01; G01B; G01B11/00; G01B11/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1781002A
Cited
US1875134A
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GB395649A
Cited
US1973066A
Cited
DE602066C
Cited
US2539597A
Cited
DE855915C
Cited
US2607270A
Cited
US2713259A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-26 | 1965-08-28 | 1966-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-26 | 1969-08-28 | 1970-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-26 | 1973-08-28 | 1974-02-27 | $7700.00 | Window Closed / Lapsed |