Patent US1898776A successfully refreshed from Google Patents.
US1898776A
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US
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Method and apparatus for burning cement
Assignee: Individual
•
Filing: 1927-09-22
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Granted: 1933-02-21
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Expires: 1947-09-22
Abstract
No abstract record available.
Inventors
- 👤 Robert W P Horn
- 👤 Jacob H Nissley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:50
CPC Classifications
F; F27; F27B; F27B7/00; F27B7/20; F27B7/36; F27B7/362; F27B7/02; F27B2007/022; F27B2007/367; F27D; F27D3/00; F27D3/16; F27D2003/162; F27D2003/165
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) | 1936-02-21 | 1936-08-22 | 1937-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-02-21 | 1940-08-22 | 1941-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-02-21 | 1944-08-22 | 1945-02-21 | $7700.00 | Window Closed / Lapsed |