Patent US3134927A successfully refreshed from Google Patents.
Patent US3540194A successfully refreshed from Google Patents.
US3540194A
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Method of removing marine growths and roots
Assignee: MERLE P CHAPLIN
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Filing: 1968-10-02
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Granted: 1970-11-17
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Expires: 1988-10-02
Abstract
No abstract record available.
Inventors
- 👤 Merle P Chaplin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:50
CPC Classifications
E; E02; E02F; E02F5/00; E02F5/28; E02F5/282; A; A01; A01D; A01D44/00; E02F3/00; E02F3/04; E02F3/08; E02F3/081; E02F9/00; E02F9/02; E02F9/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US95213A
Cited
US1415113A
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US1572472A
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US2204018A
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US2610415A
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US2672700A
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US2852868A
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US3019535A
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US3295231A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-16 | 1974-05-18 | 1974-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-16 | 1978-05-18 | 1978-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-16 | 1982-05-18 | 1982-11-17 | $7700.00 | Window Closed / Lapsed |