US1370968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of keene's cement
Assignee: BEST BROTHERS KEENE S CEMENT C
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Filing: 1918-05-13
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Granted: 1921-03-08
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Expires: 1938-05-13
Abstract
No abstract record available.
Inventors
- 👤 Hoskins William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:35
CPC Classifications
C; C04; C04B; C04B11/00; C04B11/02; C04B11/028; C04B11/036; F; F27; F27B; F27B7/00; F27B7/02; F27B2007/027
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) | 1924-03-07 | 1924-09-06 | 1925-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-03-07 | 1928-09-06 | 1929-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-03-07 | 1932-09-06 | 1933-03-08 | $7700.00 | Window Closed / Lapsed |