US3002249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for the manufacture of concrete building units
Assignee: Individual
•
Filing: 1957-03-18
•
Granted: 1961-10-03
•
Expires: 1977-03-18
Abstract
No abstract record available.
Inventors
- 👤 Clarence W Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:13
CPC Classifications
B; B28; B28B; B28B5/00; B28B5/02; B28B5/021; B28B5/025; B28B3/00; B28B3/12; B28B3/123; B28B7/00; B28B7/34; B29; B29C; B29C67/00; B29C67/24; B29C67/242; B29C67/245
Claims Analysis
Total Claims: 0
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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) | 1964-10-02 | 1965-04-03 | 1965-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-02 | 1969-04-03 | 1969-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-02 | 1973-04-03 | 1973-10-03 | $7700.00 | Window Closed / Lapsed |