Patent US2963273A successfully refreshed from Google Patents.
US2963273A
Expired / Lapsed
US
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Rod assembly for prestressed concrete
Assignee: Individual
•
Filing: 1957-11-21
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Granted: 1960-12-06
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Expires: 1977-11-21
Abstract
No abstract record available.
Inventors
- 👤 Abhot A Lane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:03
CPC Classifications
E; E04; E04C; E04C5/00; E04C5/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2303394A
Cited
US2328033A
Cited
US2378584A
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US2453079A
Cited
GB642589A
Cited
GB694596A
Cited
US2677956A
Cited
US2804674A
Cited
US2761649A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-06 | 1964-06-06 | 1964-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-06 | 1968-06-06 | 1968-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-06 | 1972-06-06 | 1972-12-06 | $7700.00 | Window Closed / Lapsed |