Patent US2347959A successfully refreshed from Google Patents.
US2347959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water spider
Assignee: AMERICAN MARINE ENGINEERING CO
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Filing: 1940-12-26
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Granted: 1944-05-02
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Expires: 1960-12-26
Abstract
No abstract record available.
Inventors
- 👤 Virgil B Moore
- 👤 Stephen P Tsoneff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:09
CPC Classifications
B; B63; B63B; B63B1/00; B63B1/16; B63B1/18; B63B1/22; B63B1/02; B63B1/10; B63B1/12; B63B1/125; B63B2001/126; B63G; B63G1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1947-05-02 | 1947-11-01 | 1948-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-05-02 | 1951-11-01 | 1952-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-05-02 | 1955-11-01 | 1956-05-02 | $7700.00 | Window Closed / Lapsed |