US1228593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic pressure-limiting valve.
Assignee: EDWARD STEAM SPECIALTY Co
•
Filing: 1913-01-02
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Granted: 1917-06-05
•
Expires: 1933-01-02
Abstract
No abstract record available.
Inventors
- 👤 Olaf E Oleson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:48
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/22; G01N1/2202; Y; Y10; Y10S; Y10S122/00; Y10S122/15; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7845; Y10T137/8593; Y10T137/87265; Y10T137/87539; Y10T137/87555; Y10T137/87917; Y10T137/88062
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) | 1920-06-04 | 1920-12-04 | 1921-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-06-04 | 1924-12-04 | 1925-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-06-04 | 1928-12-04 | 1929-06-05 | $7700.00 | Window Closed / Lapsed |