US2421679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lifesaving boat
Assignee: Cambridge Rubber Co
•
Filing: 1944-05-01
•
Granted: 1947-06-03
•
Expires: 1964-05-01
Abstract
No abstract record available.
Inventors
- 👤 Jr George H Bingham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:50
CPC Classifications
B; B63; B63C; B63C9/00; B63C9/02; B63C9/04; B63C2009/042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE135859C
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DE461608C
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GB170356A
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US1570470A
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DE614162C
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US1671874A
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US2021156A
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US2223625A
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US2334072A
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US2367835A
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US2370069A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-06-02 | 1950-12-02 | 1951-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-06-02 | 1954-12-02 | 1955-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-06-02 | 1958-12-02 | 1959-06-03 | $7700.00 | Window Closed / Lapsed |