US2770252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas pressure reduction regulator
Assignee: ALICE M BASS
•
Filing: 1951-09-24
•
Granted: 1956-11-13
•
Expires: 1971-09-24
Abstract
No abstract record available.
Inventors
- 👤 Sr Harvey G Bass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:14
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/04; G05D16/0402; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7795; Y10T137/794; Y10T137/8122; Y10T137/8158; Y10T137/8175
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US255338A
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US1107849A
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US1842236A
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US2057133A
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US1883690A
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US1912383A
Cited
US2057150A
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US2195728A
Cited
US2220229A
Cited
US2521166A
Cited
US2524231A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-13 | 1960-05-14 | 1960-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-13 | 1964-05-14 | 1964-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-13 | 1968-05-14 | 1968-11-13 | $7700.00 | Window Closed / Lapsed |