US1827238A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of solidifying permeable rock, loosely spread masses or building structures
Assignee: Siemens Bauunion GmbH
•
Filing: 1929-11-14
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Granted: 1931-10-13
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Expires: 1949-11-14
Abstract
No abstract record available.
Inventors
- 👤 Joosten Hugo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:10
CPC Classifications
C; C09; C09K; C09K17/00; C09K17/02; C09K17/12; Y; Y10; Y10S; Y10S106/00; Y10S106/90
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) | 1934-10-12 | 1935-04-13 | 1935-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-10-12 | 1939-04-13 | 1939-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-10-12 | 1943-04-13 | 1943-10-13 | $7700.00 | Window Closed / Lapsed |