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US1235992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steam-turbine.
Assignee: William Cramp & Sons Ship & Engine Building Co
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Filing: 1916-11-11
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Granted: 1917-08-07
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Expires: 1936-11-11
Abstract
No abstract record available.
Inventors
- 👤 John F Metten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:39
CPC Classifications
F; F04; F04D; F04D25/00; F04D25/16; F04D25/166
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) | 1920-08-06 | 1921-02-05 | 1921-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-08-06 | 1925-02-05 | 1925-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-08-06 | 1929-02-05 | 1929-08-07 | $7700.00 | Window Closed / Lapsed |