Patent US1056373A successfully refreshed from Google Patents.
US1056373A
Expired / Lapsed
US
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Retarder for flue-tubes.
Assignee: FRANZ KUEWNICK
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Filing: 1912-10-25
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Granted: 1913-03-18
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Expires: 1932-10-25
Abstract
No abstract record available.
Inventors
- 👤 Heinrich Segelken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:18
CPC Classifications
F; F28; F28F; F28F1/00; F28F1/10; F28F1/40; F22; F22B; F22B7/00; F22B7/16; F22B7/20; F24; F24H; F24H9/00; F24H9/0005; F24H9/001; F24H9/0026; F28F13/00; F28F13/06; F28F13/12
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) | 1916-03-17 | 1916-09-16 | 1917-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1920-03-17 | 1920-09-16 | 1921-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1924-03-17 | 1924-09-16 | 1925-03-18 | $7700.00 | Window Closed / Lapsed |