US2913798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of hollow rounded ele-ments of prestressed concrete
Assignee: Individual
•
Filing: 1953-12-08
•
Granted: 1959-11-24
•
Expires: 1973-12-08
Abstract
No abstract record available.
Inventors
- 👤 Claire J Breguet
- 👤 Antoine J E L Breguet
- 👤 Jacqueline Y Breguet
- 👤 Gilberte M L Breguet
- 👤 Pierre E L Breguet
- 👤 Paul G R L Breguet
- 👤 Pascal A L Breguet
- 👤 Louis-Christian A M Breguet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:21
CPC Classifications
B; B28; B28B; B28B21/00; B28B21/56; B28B21/60; B28B23/00; B28B23/02; B28B23/04; B28B23/12; B64; B64C; B64C1/00; B64C1/06; B64C2001/0054; B64C2001/0081
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1962-11-23 | 1963-05-25 | 1963-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-23 | 1967-05-25 | 1967-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-23 | 1971-05-25 | 1971-11-24 | $7700.00 | Window Closed / Lapsed |