US1050185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feed-water controller and low-water alarm for boilers.
Assignee: HULL MANUFACTURING Co
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Filing: 1911-06-24
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Granted: 1913-01-14
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Expires: 1931-06-24
Abstract
No abstract record available.
Inventors
- 👤 Lewis S Watres
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:58
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/18; F16K31/34; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3115; Y10T137/3143; Y10T137/3146; Y10T137/7287; Y10T137/7358; Y10T137/7368; Y10T137/7371; Y10T137/7378; Y10T137/7423; Y10T137/7426; Y10T137/8158; Y10T137/8342
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) | 1916-01-14 | 1916-07-15 | 1917-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1920-01-14 | 1920-07-15 | 1921-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1924-01-14 | 1924-07-15 | 1925-01-14 | $7700.00 | Window Closed / Lapsed |