US3027860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-friction hull
Assignee: ANTI FRICTION HULL CORP
•
Filing: 1959-10-15
•
Granted: 1962-04-03
•
Expires: 1979-10-15
Abstract
No abstract record available.
Inventors
- 👤 Robert W Priest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:43
CPC Classifications
B; B63; B63B; B63B1/00; B63B1/32; B63B1/34; B63B1/38; B60; B60V; B60V1/00; B60V1/04; B60V1/046; B60V1/11; B60V1/12; B60V1/14; B60V1/145; B60V3/00; B60V3/06; B60V3/065; Y; Y02; Y02T; Y02T70/00; Y02T70/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
FR379020A
Cited
US1003364A
Cited
US1070878A
Cited
US1412848A
Cited
US1621625A
Cited
US1720167A
Cited
US1819216A
Cited
US2218938A
Cited
US2322790A
Cited
US2348106A
Cited
US2842084A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-02 | 1965-10-02 | 1966-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-02 | 1969-10-02 | 1970-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-02 | 1973-10-02 | 1974-04-03 | $7700.00 | Window Closed / Lapsed |