US3033370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sifting apparatus
Assignee: Entoleter Inc
•
Filing: 1959-08-17
•
Granted: 1962-05-08
•
Expires: 1979-08-17
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry W Mould
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:28
CPC Classifications
B; B07; B07B; B07B1/00; B07B1/28; B07B1/286; B07B1/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2819796A
Cited
GB190613955A
Cited
US1468261A
Cited
US1839614A
Cited
US1971156A
Cited
US2395138A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |