Patent US4545264A successfully refreshed from Google Patents.
Patent US2801035A successfully refreshed from Google Patents.
US2801035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power-operated loading gate for centrifugal machines
Assignee: Western States Machine Co
•
Filing: 1953-09-17
•
Granted: 1957-07-30
•
Expires: 1973-09-17
Abstract
No abstract record available.
Inventors
- 👤 Hertrich Elise
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:57
CPC Classifications
B; B04; B04B; B04B11/00; B04B11/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-29 | 1961-01-28 | 1961-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-29 | 1965-01-28 | 1965-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-29 | 1969-01-28 | 1969-07-30 | $7700.00 | Window Closed / Lapsed |