Patent US2997975A successfully refreshed from Google Patents.
US2997975A
Expired / Lapsed
US
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Boat drain plug
Assignee: Moeller Mfg Co LLC
•
Filing: 1958-05-08
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Granted: 1961-08-29
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Expires: 1978-05-08
Abstract
No abstract record available.
Inventors
- 👤 Moeller Axel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:16
CPC Classifications
B; B63; B63B; B63B13/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1198956A
Cited
US1819074A
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US1866643A
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US2655121A
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US2729353A
Cited
US2730062A
Cited
US2909144A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-28 | 1965-02-27 | 1965-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-28 | 1969-02-27 | 1969-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-28 | 1973-02-27 | 1973-08-29 | $7700.00 | Window Closed / Lapsed |