Patent US2915879A successfully refreshed from Google Patents.
US2915879A
Expired / Lapsed
US
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Fender system for underwater drilling platforms
Assignee: California Research LLC
•
Filing: 1955-05-09
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Granted: 1959-12-08
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Expires: 1975-05-09
Abstract
No abstract record available.
Inventors
- 👤 Besse Celestine Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:22
CPC Classifications
E; E02; E02B; E02B3/00; E02B3/20; E02B3/26; Y; Y02; Y02A; Y02A30/00; Y02A30/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US821770A
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US1258111A
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US1296669A
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US1711898A
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GB312960A
Cited
DE539447C
Cited
US2139642A
Cited
US2391612A
Cited
US2420677A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-07 | 1963-06-08 | 1963-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-07 | 1967-06-08 | 1967-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-07 | 1971-06-08 | 1971-12-08 | $7700.00 | Window Closed / Lapsed |