US2495100A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making precast concrete units
Assignee: CEMENSTONE CORP
•
Filing: 1946-03-27
•
Granted: 1950-01-17
•
Expires: 1966-03-27
Abstract
No abstract record available.
Inventors
- 👤 Henderson Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:26
CPC Classifications
B; B28; B28B; B28B7/00; B28B7/0002; B28B7/0011; B28B7/02; B28B7/24; B28B7/241; B28B7/34; B28B7/40; B28B7/42; Y; Y10; Y10S; Y10S425/00; Y10S425/124
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2334804A
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US2408149A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-16 | 1953-07-18 | 1954-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-16 | 1957-07-18 | 1958-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-16 | 1961-07-18 | 1962-01-17 | $7700.00 | Window Closed / Lapsed |