Patent US3025678A successfully refreshed from Google Patents.
US3025678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marine method
Assignee: Individual
•
Filing: 1954-04-07
•
Granted: 1962-03-20
•
Expires: 1974-04-07
Abstract
No abstract record available.
Inventors
- 👤 Robert A J Dawson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:36
CPC Classifications
E; E02; E02B; E02B17/00; E02B17/02; E02B17/027
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US31125A
Cited
US273851A
Cited
US470535A
Cited
US2675681A
Cited
GB191322592A
Cited
US1681533A
Cited
US2236682A
Cited
US2318685A
Cited
GB606033A
Cited
US2580911A
Cited
US2551375A
Cited
US2653452A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-19 | 1965-09-18 | 1966-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-19 | 1969-09-18 | 1970-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-19 | 1973-09-18 | 1974-03-20 | $7700.00 | Window Closed / Lapsed |