US2737802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite prestressing reinforcement
Assignee: Individual
•
Filing: 1950-10-17
•
Granted: 1956-03-13
•
Expires: 1970-10-17
Abstract
No abstract record available.
Inventors
- 👤 Bakker Johannes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:53
CPC Classifications
E; E04; E04C; E04C5/00; E04C5/08; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49874
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB452126A
Cited
US2329670A
Cited
US2328033A
Cited
CH273004A
Cited
GB559314A
Cited
US2378584A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-13 | 1959-09-12 | 1960-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-13 | 1963-09-12 | 1964-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-13 | 1967-09-12 | 1968-03-13 | $7700.00 | Window Closed / Lapsed |