US2977607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sectional boat construction
Assignee: Individual
•
Filing: 1959-07-29
•
Granted: 1961-04-04
•
Expires: 1979-07-29
Abstract
No abstract record available.
Inventors
- 👤 James R Roblee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:35
CPC Classifications
B; B63; B63B; B63B7/00; B63B7/02; B63B7/04; B63B3/00; B63B3/02; B63B3/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US510239A
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US1138319A
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US2735392A
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US727894A
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US933426A
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US1462800A
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US1575982A
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US2443768A
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US2741782A
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US2794992A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-03 | 1964-10-03 | 1965-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-03 | 1968-10-03 | 1969-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-03 | 1972-10-03 | 1973-04-04 | $7700.00 | Window Closed / Lapsed |