US3056183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of lined prestressed concrete hollow bodies
Assignee: ENTREPRISES CAMPENON BERNARD
•
Filing: 1959-10-29
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Granted: 1962-10-02
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Expires: 1979-10-29
Abstract
No abstract record available.
Inventors
- 👤 Pigeot Robert Auguste
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:46
CPC Classifications
B; B28; B28B; B28B21/00; B28B21/02; B28B21/10; B28B21/18; B28B21/20; B28B21/205; B28B21/56; B28B21/60; B28B21/62; F; F16; F16L; F16L25/00; F16L25/0027; F16L9/00; F16L9/08; Y; Y10; Y10S; Y10S425/00; Y10S425/019
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) | 1965-10-01 | 1966-04-02 | 1966-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-01 | 1970-04-02 | 1970-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-01 | 1974-04-02 | 1974-10-02 | $7700.00 | Window Closed / Lapsed |