US3465956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Domestic centrifugal separator
Assignee: VERNA M BEARD
•
Filing: 1967-07-10
•
Granted: 1969-09-09
•
Expires: 1987-07-10
Abstract
No abstract record available.
Inventors
- 👤 Verna M Beard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:40
CPC Classifications
A; A47; A47J; A47J43/00; A47J43/24; B; B04; B04B; B04B1/00; B04B9/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1296399A
Cited
US3185304A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-08 | 1973-03-10 | 1973-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-08 | 1977-03-10 | 1977-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-08 | 1981-03-10 | 1981-09-09 | $7700.00 | Window Closed / Lapsed |