US2752044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Driving means for centrifugal machines
Assignee: Individual
•
Filing: 1953-04-20
•
Granted: 1956-06-26
•
Expires: 1973-04-20
Abstract
No abstract record available.
Inventors
- 👤 Charles A Olcott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:50
CPC Classifications
B; B04; B04B; B04B9/00; B04B9/10; B04B13/00; Y; Y10; Y10S; Y10S388/00; Y10S388/907; Y10S388/921
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2349559A
Cited
US1205128A
Cited
US1615433A
Cited
US1826963A
Cited
US2183491A
Cited
US2414154A
Cited
US2544367A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-26 | 1959-12-26 | 1960-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-26 | 1963-12-26 | 1964-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-26 | 1967-12-26 | 1968-06-26 | $7700.00 | Window Closed / Lapsed |