US3063397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sub-surface craft
Assignee: Individual
•
Filing: 1959-08-27
•
Granted: 1962-11-13
•
Expires: 1979-08-27
Abstract
No abstract record available.
Inventors
- 👤 Jr Harold Boericke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:29
CPC Classifications
B; B63; B63B; B63B1/00; B63B1/02; B63B1/04; B63B2001/044; Y; Y02; Y02T; Y02T70/00; Y02T70/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US234794A
Cited
US525179A
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DE564382C
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US1373329A
Cited
US1436902A
Cited
FR588351A
Cited
US1753399A
Cited
DE590270C
Cited
US2101613A
Cited
US2887977A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-12 | 1966-05-14 | 1966-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-12 | 1970-05-14 | 1970-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-12 | 1974-05-14 | 1974-11-13 | $7700.00 | Window Closed / Lapsed |