Patent US2964767A successfully refreshed from Google Patents.
US2964767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable gangplank and dock
Assignee: Individual
•
Filing: 1958-12-03
•
Granted: 1960-12-20
•
Expires: 1978-12-03
Abstract
No abstract record available.
Inventors
- 👤 Jack K Egbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:33
CPC Classifications
B; B63; B63B; B63B27/00; B63B27/14
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US963918A
Cited
US1458744A
Cited
US2187633A
Cited
US2536966A
Cited
US2721345A
Cited
US2758770A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |