Patent US3445147A successfully refreshed from Google Patents.
US3445147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thrust bearing assembly
Assignee: Individual
•
Filing: 1966-12-15
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Granted: 1969-05-20
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Expires: 1986-12-15
Abstract
No abstract record available.
Inventors
- 👤 Herbert W Niemi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:03
CPC Classifications
A; A47; A47C; A47C3/00; A47C3/18; F; F16; F16C; F16C17/00; F16C17/04; F16C33/00; F16C33/02; F16C33/04; F16C33/20; F16C2208/00; F16C2208/20; F16C2208/60; F16C2208/66
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1143142A
Cited
US1999949A
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US2062807A
Cited
GB550721A
Cited
US2759773A
Cited
US3075816A
Cited
FR1240143A
Cited
US3031202A
Cited
US3141909A
Cited
US3243236A
Cited
US3275390A
Cited
US3337277A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-19 | 1972-11-18 | 1973-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-19 | 1976-11-18 | 1977-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-19 | 1980-11-18 | 1981-05-20 | $7700.00 | Window Closed / Lapsed |