US2717147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixing machines for making concrete or the like
Assignee: Individual
•
Filing: 1952-08-19
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Granted: 1955-09-06
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Expires: 1972-08-19
Abstract
No abstract record available.
Inventors
- 👤 Fejmert Erik Valdemar
- 👤 Fejmert Bernhard Valdemar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:01
CPC Classifications
B; B28; B28C; B28C5/00; B28C5/08; B28C5/10; B28C5/12; B28C5/16; B28C5/163; B28C5/165; B01; B01F; B01F27/00; B01F27/80; B01F27/805; B01F27/806
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-05 | 1959-03-07 | 1959-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-05 | 1963-03-07 | 1963-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-05 | 1967-03-07 | 1967-09-06 | $7700.00 | Window Closed / Lapsed |