US3456793A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual pressure stock screen
Assignee: Beloit Corp
•
Filing: 1966-10-03
•
Granted: 1969-07-22
•
Expires: 1986-10-03
Abstract
No abstract record available.
Inventors
- 👤 Salomon M Salomon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:30
CPC Classifications
D; D21; D21D; D21D5/00; D21D5/02; D21D5/023; D21D5/026; B; B01; B01D; B01D29/00; B01D29/11; B01D29/13; B01D29/15; B01D29/23; B01D29/50; B01D29/52; B01D29/54; B01D29/76; B01D29/86; B01D29/88; B01D29/90; B01D29/908; B01D29/94; B01D29/945; D21D5/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US591645A
Cited
US1714047A
Cited
US1839941A
Cited
US2364171A
Cited
GB779796A
Cited
US3092578A
Cited
US3174622A
Cited
US3223239A
Cited
US3387708A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |