Patent US3054646A successfully refreshed from Google Patents.
US3054646A
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US
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Assignee: Bettis Rubber Co
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Filing: 1959-09-28
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Granted: 1962-09-18
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Expires: 1979-09-28
Abstract
No abstract record available.
Inventors
- 👤 Burt S Minor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:28
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/08; F16L37/12; F16L37/123; E; E21; E21B; E21B17/00; E21B17/10; E21B17/1042; E21B17/105
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-17 | 1966-03-19 | 1966-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-17 | 1970-03-19 | 1970-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-17 | 1974-03-19 | 1974-09-18 | $7700.00 | Window Closed / Lapsed |