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Patent US742308A successfully refreshed from Google Patents.
US742308A
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Steam-trap.
Assignee: NATIONAL DRY KILN Co
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Filing: 1903-04-21
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Granted: 1903-10-27
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Expires: 1923-04-21
Abstract
No abstract record available.
Inventors
- 👤 Edward Gerrard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:32
CPC Classifications
F; F16; F16T; F16T1/00; F16T1/20; F16T1/26; F16T1/28; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3021; Y10T137/304; Y10T137/3043; Y10T137/3052; Y10T137/3068; Y10T137/3074; Y10T137/8593; Y10T137/86928; Y10T137/86936; Y10T137/86944; Y10T137/86984
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) | 1906-10-26 | 1907-04-27 | 1907-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1910-10-26 | 1911-04-27 | 1911-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1914-10-26 | 1915-04-27 | 1915-10-27 | $7700.00 | Window Closed / Lapsed |