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US1248665A
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Unloader-valve.
Assignee: PELTON WATER WHEEL Co
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Filing: 1917-04-10
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Granted: 1917-12-04
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Expires: 1937-04-10
Abstract
No abstract record available.
Inventors
- 👤 Leopold M Karnasch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:55
CPC Classifications
F; F15; F15B; F15B1/00; F15B1/02; F15B1/027; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2605; Y10T137/2622; Y10T137/2625; Y10T137/7722; Y10T137/7758; Y10T137/7762; Y10T137/7769
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) | 1920-12-03 | 1921-06-04 | 1921-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-12-03 | 1925-06-04 | 1925-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-12-03 | 1929-06-04 | 1929-12-04 | $7700.00 | Window Closed / Lapsed |