Patent US2227862A successfully refreshed from Google Patents.
US2227862A
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Antifriction material
Assignee: Individual
•
Filing: 1938-07-30
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Granted: 1941-01-07
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Expires: 1958-07-30
Abstract
No abstract record available.
Inventors
- 👤 Clifford S Redfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:19
CPC Classifications
C; C10; C10M; C10M7/00; F; F16; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/10; F16J15/102; C10M2201/00; C10M2201/10; C10M2201/102; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/40; C10M2207/402; C10M2209/00; C10M2209/12; C10M2211/00; C10M2211/02; C10M2211/022; C10M2211/06; C10N; C10N2010/00; C10N2050/00; C10N2050/08; C10N2050/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1944-01-07 | 1944-07-08 | 1945-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-01-07 | 1948-07-08 | 1949-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-01-07 | 1952-07-08 | 1953-01-07 | $7700.00 | Window Closed / Lapsed |