Patent US3370447A successfully refreshed from Google Patents.
US3370447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wheel fabricating machine
Assignee: Arrowhead Engineering Corp
•
Filing: 1965-08-30
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Granted: 1968-02-27
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Expires: 1985-08-30
Abstract
No abstract record available.
Inventors
- 👤 William J Skinner
- 👤 Earl D Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:23
CPC Classifications
B; B21; B21H; B21H1/00; B21H1/02; B21H1/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49453; Y10T29/49458
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1784445A
Cited
US3104640A
Cited
US3087531A
Cited
US3195491A
Cited
US3225425A
Cited
US3282078A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-26 | 1971-08-28 | 1972-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-26 | 1975-08-28 | 1976-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-26 | 1979-08-28 | 1980-02-27 | $7700.00 | Window Closed / Lapsed |