Patent US1275831A successfully refreshed from Google Patents.
US1275831A
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US
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Assignee: "S-C" REGULATOR Co
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Filing: 1917-03-14
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Granted: 1918-08-13
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Expires: 1937-03-14
Abstract
No abstract record available.
Inventors
- 👤 Joseph M Barrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:29
CPC Classifications
F; F16; F16K; F16K47/00; F16K47/02; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86718; Y10T137/86759; Y10T137/86767; Y10T137/86783
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) | 1921-08-12 | 1922-02-11 | 1922-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1925-08-12 | 1926-02-11 | 1926-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1929-08-12 | 1930-02-11 | 1930-08-13 | $7700.00 | Window Closed / Lapsed |