US2480144A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pontoon assembly
Assignee: Individual
•
Filing: 1943-08-12
•
Granted: 1949-08-30
•
Expires: 1963-08-12
Abstract
No abstract record available.
Inventors
- 👤 John N Laycock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:35
CPC Classifications
B; B63; B63B; B63B35/00; B63B35/34; B63B35/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1430179A
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US2399202A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-29 | 1953-02-28 | 1953-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-29 | 1957-02-28 | 1957-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-29 | 1961-02-28 | 1961-08-30 | $7700.00 | Window Closed / Lapsed |