Patent US3528645A successfully refreshed from Google Patents.
US3528645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearing block
Assignee: Individual
•
Filing: 1968-04-18
•
Granted: 1970-09-15
•
Expires: 1988-04-18
Abstract
No abstract record available.
Inventors
- 👤 Peter O Harken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:00
CPC Classifications
B; B66; B66D; B66D3/00; B66D3/04; B66D2700/00; B66D2700/02; B66D2700/026; B66D2700/028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US297128A
Cited
US566213A
Cited
FR35045E
Cited
CA779780A
Cited
US817074A
Cited
US964672A
Cited
US1185179A
Cited
US1356363A
Cited
US2170238A
Cited
FR1096059A
Cited
US3294446A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-14 | 1974-03-16 | 1974-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-14 | 1978-03-16 | 1978-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-14 | 1982-03-16 | 1982-09-15 | $7700.00 | Window Closed / Lapsed |