Patent US3497990A successfully refreshed from Google Patents.
US3497990A
Expired / Lapsed
US
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Cellular antifouling covering for submerged marine objects
Assignee: Goodyear Tire and Rubber Co
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Filing: 1967-11-15
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Granted: 1970-03-03
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Expires: 1987-11-15
Abstract
No abstract record available.
Inventors
- 👤 Frank A Jeffries
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:13
CPC Classifications
B; B63; B63B; B63B59/00; B63B59/04; Y; Y10; Y10S; Y10S428/00; Y10S428/907
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2874548A
Cited
US879640A
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US1973813A
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US2191248A
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US2435986A
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US3033724A
Cited
US2865702A
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US2930710A
Cited
US3276841A
Cited
US3426473A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-02 | 1973-09-01 | 1974-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-02 | 1977-09-01 | 1978-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-02 | 1981-09-01 | 1982-03-03 | $7700.00 | Window Closed / Lapsed |