Patent CA674841A successfully refreshed from Google Patents.
US2321384A
Expired / Lapsed
US
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Compound for sealing and lubricating relatively moving parts
Assignee: Individual
•
Filing: 1941-03-31
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Granted: 1943-06-08
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Expires: 1961-03-31
Abstract
No abstract record available.
Inventors
- 👤 Herman W Hemker
- 👤 Robert C Fuhrman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:41
CPC Classifications
C; C10; C10M; C10M5/00; C10M2205/00; C10M2205/18; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/40; C10M2207/402; C10M2209/00; C10M2209/02; C10M2209/08; C10M2215/00; C10M2215/20; C10M2215/202; C10N; C10N2010/00; C10N2010/04; C10N2010/08; C10N2050/00; 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) | 1946-06-07 | 1946-12-07 | 1947-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-06-07 | 1950-12-07 | 1951-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-06-07 | 1954-12-07 | 1955-06-08 | $7700.00 | Window Closed / Lapsed |