US2742012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pontoons
Assignee: SAUNDERS ROE Ltd
•
Filing: 1952-02-14
•
Granted: 1956-04-17
•
Expires: 1972-02-14
Abstract
No abstract record available.
Inventors
- 👤 Bridges Francis Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:22
CPC Classifications
B; B63; B63B; B63B35/00; B63B35/34; B63B35/38
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US522348A
Cited
US1001372A
Cited
US1116894A
Cited
GB191510569A
Cited
US1896546A
Cited
US1927124A
Cited
US2051281A
Cited
US2314624A
Cited
US2423832A
Cited
US2480144A
Cited
US2394764A
Cited
US2453155A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-17 | 1959-10-17 | 1960-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-17 | 1963-10-17 | 1964-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-17 | 1967-10-17 | 1968-04-17 | $7700.00 | Window Closed / Lapsed |