Patent US3357162A successfully refreshed from Google Patents.
US3357162A
Expired / Lapsed
US
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Pressure regulator filter device
Assignee: Numatics Inc
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Filing: 1965-05-10
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Granted: 1967-12-12
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Expires: 1985-05-10
Abstract
No abstract record available.
Inventors
- 👤 Doig George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:57
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/24; B01D46/0027; B01D46/003; B01D46/0031; B01D46/42; B01D46/4272; B01D46/44; B01D46/446; B01D46/54; B01D46/543; F; F02; F02M; F02M35/00; F02M35/02; F02M35/024; G; G05; G05D; G05D16/00; G05D16/04; G05D16/06; G05D16/063; G05D16/0644; G05D16/0655
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1225533A
Cited
US1458005A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-11 | 1971-06-12 | 1971-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-11 | 1975-06-12 | 1975-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-11 | 1979-06-12 | 1979-12-12 | $7700.00 | Window Closed / Lapsed |