Patent US3385753A successfully refreshed from Google Patents.
US3385753A
Expired / Lapsed
US
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Strainer
Assignee: Improved Machinery Inc
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Filing: 1967-05-15
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Granted: 1968-05-28
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Expires: 1987-05-15
Abstract
No abstract record available.
Inventors
- 👤 Rich John Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:59
CPC Classifications
D; D21; D21D; D21D5/00; D21D5/02; B; B01; B01D; B01D29/00; B01D29/11; B01D29/31; B01D29/35; B01D29/356; B01D29/44; B01D29/445; B01D29/50; B01D29/52; B01D29/54; B01D29/76; B01D29/78
Claims Analysis
Total Claims: 0
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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) | 1971-05-28 | 1971-11-27 | 1972-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-28 | 1975-11-27 | 1976-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-28 | 1979-11-27 | 1980-05-28 | $7700.00 | Window Closed / Lapsed |