Patent US3547267A successfully refreshed from Google Patents.
US3547267A
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US
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Straining apparatus
Assignee: DOUGLAS G SUTHERLAND
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Filing: 1967-12-27
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Granted: 1970-12-15
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Expires: 1987-12-27
Abstract
No abstract record available.
Inventors
- 👤 Douglas G Sutherland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:49
CPC Classifications
B; B07; B07B; B07B1/00; B07B1/06; B07B13/00; B07B13/14; B07B13/16; D; D21; D21D; D21D5/00; D21D5/02; D21D5/06; B07B2230/00; B07B2230/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |