Patent US2856172A successfully refreshed from Google Patents.
US2856172A
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Sectional continuous furnace-kiln
Assignee: Individual
•
Filing: 1956-10-09
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Granted: 1958-10-14
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Expires: 1976-10-09
Abstract
No abstract record available.
Inventors
- 👤 Kautz Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:26
CPC Classifications
C; C03; C03B; C03B35/00; C03B35/14; C03B35/16; C03B35/18; C03B35/181; C03B29/00; C03B29/04; C03B29/06; C03B35/185; C03B35/189; F; F27; F27B; F27B9/00; F27B9/14; F27B9/20; F27B9/24; F27B9/243; F27B9/30; F27B9/32; F27D; F27D1/00; F27D1/02; F27D1/021; F27D3/00; F27D3/02; F27D3/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US651461A
Cited
US1285750A
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US1296122A
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US1525130A
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US1808152A
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DE605501C
Cited
US2135175A
Cited
US2468456A
Cited
US2428344A
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US2729872A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |